125195720972 has 24 divisors (see below), whose sum is σ = 250627497120. Its totient is φ = 53604725760.

The previous prime is 125195720959. The next prime is 125195720981. The reversal of 125195720972 is 279027591521.

It is a self number, because there is not a number n which added to its sum of digits gives 125195720972.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2077397 + ... + 2136812.

It is an arithmetic number, because the mean of its divisors is an integer number (10442812380).

Almost surely, 2^125195720972 is an apocalyptic number.

It is an amenable number.

125195720972 is an abundant number, since it is smaller than the sum of its proper divisors (125431776148).

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

125195720972 is a wasteful number, since it uses less digits than its factorization.

125195720972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215281 (or 4215279 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 50.

The spelling of 125195720972 in words is "one hundred twenty-five billion, one hundred ninety-five million, seven hundred twenty thousand, nine hundred seventy-two".