12979543637 has 8 divisors (see below), whose sum is σ = 13123848192. Its totient is φ = 12835897200.

The previous prime is 12979543631. The next prime is 12979543657. The reversal of 12979543637 is 73634597921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12979543637 - 2⁶ = 12979543573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12979543631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124814 + ... + 203807.

It is an arithmetic number, because the mean of its divisors is an integer number (1640481024).

Almost surely, 2^12979543637 is an apocalyptic number.

It is an amenable number.

12979543637 is a deficient number, since it is larger than the sum of its proper divisors (144304555).

12979543637 is a wasteful number, since it uses less digits than its factorization.

12979543637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329059.

The product of its digits is 8573040, while the sum is 56.

The spelling of 12979543637 in words is "twelve billion, nine hundred seventy-nine million, five hundred forty-three thousand, six hundred thirty-seven".