10239745256 has 32 divisors (see below), whose sum is σ = 21389394600. Its totient is φ = 4563068160.

The previous prime is 10239745247. The next prime is 10239745283. The reversal of 10239745256 is 65254793201.

It can be written as a sum of positive squares in 4 ways, for example, as 9217920100 + 1021825156 = 96010^2 + 31966^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1694555 + ... + 1700586.

Almost surely, 2^10239745256 is an apocalyptic number.

It is an amenable number.

10239745256 is an abundant number, since it is smaller than the sum of its proper divisors (11149649344).

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

10239745256 is a wasteful number, since it uses less digits than its factorization.

10239745256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395189 (or 3395185 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 44.

The spelling of 10239745256 in words is "ten billion, two hundred thirty-nine million, seven hundred forty-five thousand, two hundred fifty-six".