64755261013 has 16 divisors (see below), whose sum is σ = 68006719872. Its totient is φ = 61540776000.

The previous prime is 64755261001. The next prime is 64755261019. The reversal of 64755261013 is 31016255746.

It is a cyclic number.

It is not a de Polignac number, because 64755261013 - 2²¹ = 64753163861 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 (64755261019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4909918 + ... + 4923088.

It is an arithmetic number, because the mean of its divisors is an integer number (4250419992).

Almost surely, 2^64755261013 is an apocalyptic number.

It is an amenable number.

64755261013 is a deficient number, since it is larger than the sum of its proper divisors (3251458859).

64755261013 is a wasteful number, since it uses less digits than its factorization.

64755261013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14556.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 64755261013 in words is "sixty-four billion, seven hundred fifty-five million, two hundred sixty-one thousand, thirteen".