125863790256 has 120 divisors (see below), whose sum is σ = 376809726384. Its totient is φ = 39079526400.

The previous prime is 125863790249. The next prime is 125863790281. The reversal of 125863790256 is 652097368521.

125863790256 is a `hidden beast` number, since 1 + 2 + 586 + 3 + 7 + 9 + 0 + 2 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27570 + ... + 502481.

Almost surely, 2^125863790256 is an apocalyptic number.

125863790256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125863790256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188404863192).

125863790256 is an abundant number, since it is smaller than the sum of its proper divisors (250945936128).

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

125863790256 is a wasteful number, since it uses less digits than its factorization.

125863790256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530179 (or 530170 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 125863790256 in words is "one hundred twenty-five billion, eight hundred sixty-three million, seven hundred ninety thousand, two hundred fifty-six".