251425533800868 has 48 divisors (see below), whose sum is σ = 709907389559424. Its totient is φ = 67610227576320.

The previous prime is 251425533800867. The next prime is 251425533800873. The reversal of 251425533800868 is 868008335524152.

It is not an unprimeable number, because it can be changed into a prime (251425533800867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88034149063 + ... + 88034151918.

It is an arithmetic number, because the mean of its divisors is an integer number (14789737282488).

Almost surely, 2^{251425533800868} is an apocalyptic number.

251425533800868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

251425533800868 is an abundant number, since it is smaller than the sum of its proper divisors (458481855758556).

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

251425533800868 is a wasteful number, since it uses less digits than its factorization.

251425533800868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176068301012 (or 176068301010 counting only the distinct ones).

The product of its (nonzero) digits is 55296000, while the sum is 60.

The spelling of 251425533800868 in words is "two hundred fifty-one trillion, four hundred twenty-five billion, five hundred thirty-three million, eight hundred thousand, eight hundred sixty-eight".