15372720875 has 8 divisors (see below), whose sum is σ = 19185155808. Its totient is φ = 12298176600.

The previous prime is 15372720859. The next prime is 15372720893. The reversal of 15372720875 is 57802727351.

15372720875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15372720875 - 2⁴ = 15372720859 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 61490759 + ... + 61491008.

It is an arithmetic number, because the mean of its divisors is an integer number (2398144476).

Almost surely, 2^15372720875 is an apocalyptic number.

15372720875 is a deficient number, since it is larger than the sum of its proper divisors (3812434933).

15372720875 is an equidigital number, since it uses as much as digits as its factorization.

15372720875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122981782 (or 122981772 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 15372720875 in words is "fifteen billion, three hundred seventy-two million, seven hundred twenty thousand, eight hundred seventy-five".