256423232260 has 48 divisors (see below), whose sum is σ = 580071643200. Its totient is φ = 94653120384.

The previous prime is 256423232227. The next prime is 256423232293. The reversal of 256423232260 is 62232324652.

It is an interprime number because it is at equal distance from previous prime (256423232227) and next prime (256423232293).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 816571 + ... + 1086109.

It is an arithmetic number, because the mean of its divisors is an integer number (12084825900).

Almost surely, 2^256423232260 is an apocalyptic number.

256423232260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256423232260 is an abundant number, since it is smaller than the sum of its proper divisors (323648410940).

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

256423232260 is a wasteful number, since it uses less digits than its factorization.

256423232260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273220 (or 273218 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 256423232260 in words is "two hundred fifty-six billion, four hundred twenty-three million, two hundred thirty-two thousand, two hundred sixty".