256762766272 has 28 divisors (see below), whose sum is σ = 509600998576. Its totient is φ = 128359365120.

The previous prime is 256762766269. The next prime is 256762766279. The reversal of 256762766272 is 272667267652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256762766279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35293 + ... + 717475.

Almost surely, 2^256762766272 is an apocalyptic number.

It is an amenable number.

256762766272 is a deficient number, since it is larger than the sum of its proper divisors (252838232304).

256762766272 is an equidigital number, since it uses as much as digits as its factorization.

256762766272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688076 (or 688066 counting only the distinct ones).

The product of its digits is 35562240, while the sum is 58.

The spelling of 256762766272 in words is "two hundred fifty-six billion, seven hundred sixty-two million, seven hundred sixty-six thousand, two hundred seventy-two".