125881910944 has 12 divisors (see below), whose sum is σ = 247830012234. Its totient is φ = 62940955456.

The previous prime is 125881910939. The next prime is 125881910963. The reversal of 125881910944 is 449019188521.

It can be written as a sum of positive squares in only one way, i.e., 106889763600 + 18992147344 = 326940^2 + 137812^2 .

It is a super-2 number, since 2×125881910944² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 125881910891 and 125881910900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1966904827 + ... + 1966904890.

Almost surely, 2^125881910944 is an apocalyptic number.

It is an amenable number.

125881910944 is a deficient number, since it is larger than the sum of its proper divisors (121948101290).

125881910944 is an equidigital number, since it uses as much as digits as its factorization.

125881910944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933809727 (or 3933809719 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 52.

The spelling of 125881910944 in words is "one hundred twenty-five billion, eight hundred eighty-one million, nine hundred ten thousand, nine hundred forty-four".