256454368260 has 48 divisors (see below), whose sum is σ = 720141662016. Its totient is φ = 68190742912.

The previous prime is 256454368253. The next prime is 256454368283. The reversal of 256454368260 is 62863454652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6138027 + ... + 6179666.

It is an arithmetic number, because the mean of its divisors is an integer number (15002951292).

Almost surely, 2^256454368260 is an apocalyptic number.

256454368260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256454368260 is an abundant number, since it is smaller than the sum of its proper divisors (463687293756).

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

256454368260 is a wasteful number, since it uses less digits than its factorization.

256454368260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12318052 (or 12318050 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 51.

It can be divided in two parts, 256454368 and 260, that added together give a triangular number (256454628 = T₂₂₆₄₇).

The spelling of 256454368260 in words is "two hundred fifty-six billion, four hundred fifty-four million, three hundred sixty-eight thousand, two hundred sixty".