125013902638 has 8 divisors (see below), whose sum is σ = 187544677680. Its totient is φ = 62499010080.

The previous prime is 125013902621. The next prime is 125013902639. The reversal of 125013902638 is 836209310521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 125013902638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125013902639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3950923 + ... + 3982438.

It is an arithmetic number, because the mean of its divisors is an integer number (23443084710).

Almost surely, 2^125013902638 is an apocalyptic number.

125013902638 is a deficient number, since it is larger than the sum of its proper divisors (62530775042).

125013902638 is an equidigital number, since it uses as much as digits as its factorization.

125013902638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7941242.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 125013902638 in words is "one hundred twenty-five billion, thirteen million, nine hundred two thousand, six hundred thirty-eight".