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64892734934353 = 449190017606297
BaseRepresentation
bin11101100000101000001000…
…11010100000110101010001
322111202200111021100201122021
432300110010122200311101
532001200310120344403
6350003151052211441
716445226315612634
oct1660240432406521
9274680437321567
1064892734934353
1119749944136187
127340791769b81
132a29487c411c1
141204b7a223c1b
157780203628bd
hex3b05046a0d51

64892734934353 has 8 divisors (see below), whose sum is σ = 65040693568200. Its totient is φ = 64744791552000.

The previous prime is 64892734934351. The next prime is 64892734934387. The reversal of 64892734934353 is 35343943729846.

It can be written as a sum of positive squares in 4 ways, for example, as 11245211078544 + 53647523855809 = 3353388^2 + 7324447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64892734934353 - 21 = 64892734934351 is a prime.

It is a super-2 number, since 2×648927349343532 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64892734934351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4728301 + ... + 12334597.

It is an arithmetic number, because the mean of its divisors is an integer number (8130086696025).

Almost surely, 264892734934353 is an apocalyptic number.

It is an amenable number.

64892734934353 is a deficient number, since it is larger than the sum of its proper divisors (147958633847).

64892734934353 is a wasteful number, since it uses less digits than its factorization.

64892734934353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7625747.

The product of its digits is 1410877440, while the sum is 70.

The spelling of 64892734934353 in words is "sixty-four trillion, eight hundred ninety-two billion, seven hundred thirty-four million, nine hundred thirty-four thousand, three hundred fifty-three".

Divisors: 1 449 19001 7606297 8531449 3415227353 144527249297 64892734934353