12867749379 has 12 divisors (see below), whose sum is σ = 18621112432. Its totient is φ = 8562639600.

The previous prime is 12867749353. The next prime is 12867749381. The reversal of 12867749379 is 97394776821.

12867749379 is a `hidden beast` number, since 1 + 2 + 8 + 6 + 77 + 493 + 79 = 666.

It is not a de Polignac number, because 12867749379 - 2²⁹ = 12330878467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12867749339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1316527 + ... + 1326264.

Almost surely, 2^12867749379 is an apocalyptic number.

12867749379 is a deficient number, since it is larger than the sum of its proper divisors (5753363053).

12867749379 is a wasteful number, since it uses less digits than its factorization.

12867749379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2643338 (or 2643335 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 63.

The spelling of 12867749379 in words is "twelve billion, eight hundred sixty-seven million, seven hundred forty-nine thousand, three hundred seventy-nine".