64026926525 has 12 divisors (see below), whose sum is σ = 79467690900. Its totient is φ = 51173604480.

The previous prime is 64026926519. The next prime is 64026926527. The reversal of 64026926525 is 52562962046.

It can be written as a sum of positive squares in 6 ways, for example, as 3155181241 + 60871745284 = 56171^2 + 246722^2 .

It is not a de Polignac number, because 64026926525 - 2¹⁸ = 64026664381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64026926525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64026926527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1171160 + ... + 1224609.

It is an arithmetic number, because the mean of its divisors is an integer number (6622307575).

Almost surely, 2^64026926525 is an apocalyptic number.

It is an amenable number.

64026926525 is a deficient number, since it is larger than the sum of its proper divisors (15440764375).

64026926525 is a wasteful number, since it uses less digits than its factorization.

64026926525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396848 (or 2396843 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 64026926525 in words is "sixty-four billion, twenty-six million, nine hundred twenty-six thousand, five hundred twenty-five".