125402915418 has 32 divisors (see below), whose sum is σ = 274063219200. Its totient is φ = 37937430960.

The previous prime is 125402915383. The next prime is 125402915431. The reversal of 125402915418 is 814519204521.

It is a super-2 number, since 2×125402915418² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125402915418.

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 in 15 ways as a sum of consecutive naturals, for example, 1546480 + ... + 1625547.

It is an arithmetic number, because the mean of its divisors is an integer number (8564475600).

Almost surely, 2^125402915418 is an apocalyptic number.

125402915418 is an abundant number, since it is smaller than the sum of its proper divisors (148660303782).

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

125402915418 is a wasteful number, since it uses less digits than its factorization.

125402915418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172642.

The product of its (nonzero) digits is 115200, while the sum is 42.

The spelling of 125402915418 in words is "one hundred twenty-five billion, four hundred two million, nine hundred fifteen thousand, four hundred eighteen".