125491902036 has 96 divisors (see below), whose sum is σ = 302492101632. Its totient is φ = 40462156800.

The previous prime is 125491901989. The next prime is 125491902083. The reversal of 125491902036 is 630209194521.

It is an interprime number because it is at equal distance from previous prime (125491901989) and next prime (125491902083).

It is a super-2 number, since 2×125491902036² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64320861 + ... + 64322811.

It is an arithmetic number, because the mean of its divisors is an integer number (3150959392).

Almost surely, 2^125491902036 is an apocalyptic number.

It is an amenable number.

125491902036 is an abundant number, since it is smaller than the sum of its proper divisors (177000199596).

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

125491902036 is a wasteful number, since it uses less digits than its factorization.

125491902036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2767 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 125491902036 in words is "one hundred twenty-five billion, four hundred ninety-one million, nine hundred two thousand, thirty-six".