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64342000477 = 532393507313
BaseRepresentation
bin111011111011000101…
…010000001101011101
320011002002211021122201
4323323011100031131
52023233023003402
645320332211501
74435311660136
oct737305201535
9204062737581
1064342000477
1125318422307
1210578009b91
1360b5193941
1431853d0c8d
151a18a31687
hexefb15035d

64342000477 has 8 divisors (see below), whose sum is σ = 65583524664. Its totient is φ = 63101495808.

The previous prime is 64342000453. The next prime is 64342000523. The reversal of 64342000477 is 77400024346.

It can be written as a sum of positive squares in 4 ways, for example, as 6074799481 + 58267200996 = 77941^2 + 241386^2 .

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 64342000477 - 223 = 64333611869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64342000447) 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, 126828 + ... + 380485.

It is an arithmetic number, because the mean of its divisors is an integer number (8197940583).

Almost surely, 264342000477 is an apocalyptic number.

64342000477 is the 126829-th decagonal number.

It is an amenable number.

64342000477 is a deficient number, since it is larger than the sum of its proper divisors (1241524187).

64342000477 is a wasteful number, since it uses less digits than its factorization.

64342000477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509759.

The product of its (nonzero) digits is 112896, while the sum is 37.

The spelling of 64342000477 in words is "sixty-four billion, three hundred forty-two million, four hundred seventy-seven", and thus it is an aban number.

Divisors: 1 53 2393 126829 507313 26887589 1214000009 64342000477