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64134553513 = 919511913633
BaseRepresentation
bin111011101110101101…
…111001111110101001
320010112122110212220211
4323232231321332221
52022321421203023
645244002021121
74430212465402
oct735655717651
9203478425824
1064134553513
1125221313338
121051a6477a1
1360811ccb64
143165a309a9
151a05705a0d
hexeeeb79fa9

64134553513 has 8 divisors (see below), whose sum is σ = 64221593600. Its totient is φ = 64047552768.

The previous prime is 64134553487. The next prime is 64134553517. The reversal of 64134553513 is 31535543146.

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 64134553513 - 29 = 64134553001 is a prime.

It is a super-2 number, since 2×641345535132 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64134553517) 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, 4697545 + ... + 4711177.

It is an arithmetic number, because the mean of its divisors is an integer number (8027699200).

Almost surely, 264134553513 is an apocalyptic number.

It is an amenable number.

64134553513 is a deficient number, since it is larger than the sum of its proper divisors (87040087).

64134553513 is a wasteful number, since it uses less digits than its factorization.

64134553513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19671.

The product of its digits is 324000, while the sum is 40.

The spelling of 64134553513 in words is "sixty-four billion, one hundred thirty-four million, five hundred fifty-three thousand, five hundred thirteen".

Divisors: 1 919 5119 13633 4704361 12528727 69787327 64134553513