12913864887 has 96 divisors (see below), whose sum is σ = 23365615104. Its totient is φ = 6251212800.

The previous prime is 12913864871. The next prime is 12913864933. The reversal of 12913864887 is 78846831921.

It is not a de Polignac number, because 12913864887 - 2⁴ = 12913864871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12913864837) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2829087 + ... + 2833647.

It is an arithmetic number, because the mean of its divisors is an integer number (243391824).

Almost surely, 2^12913864887 is an apocalyptic number.

12913864887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12913864887 is a deficient number, since it is larger than the sum of its proper divisors (10451750217).

12913864887 is a wasteful number, since it uses less digits than its factorization.

12913864887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4709 (or 4702 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 57.

The spelling of 12913864887 in words is "twelve billion, nine hundred thirteen million, eight hundred sixty-four thousand, eight hundred eighty-seven".