15375003878775 has 24 divisors (see below), whose sum is σ = 25454685912400. Its totient is φ = 8188815133440.

The previous prime is 15375003878749. The next prime is 15375003878831. The reversal of 15375003878775 is 57787830057351.

It is not a de Polignac number, because 15375003878775 - 2²⁴ = 15374987101559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139781350 + ... + 139891299.

Almost surely, 2^{15375003878775} is an apocalyptic number.

15375003878775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15375003878775 is a deficient number, since it is larger than the sum of its proper divisors (10079682033625).

15375003878775 is a wasteful number, since it uses less digits than its factorization.

15375003878775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279673395 (or 279673390 counting only the distinct ones).

The product of its (nonzero) digits is 172872000, while the sum is 66.

The spelling of 15375003878775 in words is "fifteen trillion, three hundred seventy-five billion, three million, eight hundred seventy-eight thousand, seven hundred seventy-five".