12538753887 has 16 divisors (see below), whose sum is σ = 18371319552. Its totient is φ = 7543773120.

The previous prime is 12538753879. The next prime is 12538753919. The reversal of 12538753887 is 78835783521.

It is not a de Polignac number, because 12538753887 - 2³ = 12538753879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538753387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1382203 + ... + 1391244.

It is an arithmetic number, because the mean of its divisors is an integer number (1148207472).

Almost surely, 2^12538753887 is an apocalyptic number.

12538753887 is a deficient number, since it is larger than the sum of its proper divisors (5832565665).

12538753887 is a wasteful number, since it uses less digits than its factorization.

12538753887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773598.

The product of its digits is 11289600, while the sum is 57.

The spelling of 12538753887 in words is "twelve billion, five hundred thirty-eight million, seven hundred fifty-three thousand, eight hundred eighty-seven".