12879987135 has 12 divisors (see below), whose sum is σ = 20608682712. Its totient is φ = 6869092048.

The previous prime is 12879987091. The next prime is 12879987163. The reversal of 12879987135 is 53178997821.

It is not a de Polignac number, because 12879987135 - 2¹⁹ = 12879462847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424894 + ... + 454196.

It is an arithmetic number, because the mean of its divisors is an integer number (1717390226).

Almost surely, 2^12879987135 is an apocalyptic number.

12879987135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12879987135 is a deficient number, since it is larger than the sum of its proper divisors (7728695577).

12879987135 is an frugal number, since it uses more digits than its factorization.

12879987135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58614 (or 29311 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 60.

Multiplying 12879987135 by its sum of digits (60), we get a square (772799228100 = 879090²).

The spelling of 12879987135 in words is "twelve billion, eight hundred seventy-nine million, nine hundred eighty-seven thousand, one hundred thirty-five".