264907558728 has 60 divisors (see below), whose sum is σ = 742023148515. Its totient is φ = 88298152272.

The previous prime is 264907558711. The next prime is 264907558759. The reversal of 264907558728 is 827855709462.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

264907558728 is a `hidden beast` number, since 2 + 6 + 4 + 9 + 0 + 7 + 558 + 72 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 132453779364 + 132453779364 = 363942^2 + 363942^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=363942.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 13091803 + ... + 13112021.

Almost surely, 2^264907558728 is an apocalyptic number.

It is an amenable number.

264907558728 is an abundant number, since it is smaller than the sum of its proper divisors (477115589787).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264907558728 is an frugal number, since it uses more digits than its factorization.

264907558728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40456 (or 20224 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 63.

The spelling of 264907558728 in words is "two hundred sixty-four billion, nine hundred seven million, five hundred fifty-eight thousand, seven hundred twenty-eight".