12791059412639 has 24 divisors (see below), whose sum is σ = 13798493808528. Its totient is φ = 11852120079360.

The previous prime is 12791059412603. The next prime is 12791059412647. The reversal of 12791059412639 is 93621495019721.

It is a de Polignac number, because none of the positive numbers 2^k-12791059412639 is a prime.

It is a super-2 number, since 2×12791059412639² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791059412669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33521267 + ... + 33900699.

It is an arithmetic number, because the mean of its divisors is an integer number (574937242022).

Almost surely, 2^{12791059412639} is an apocalyptic number.

12791059412639 is a deficient number, since it is larger than the sum of its proper divisors (1007434395889).

12791059412639 is a wasteful number, since it uses less digits than its factorization.

12791059412639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381275 (or 381258 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 59.

The spelling of 12791059412639 in words is "twelve trillion, seven hundred ninety-one billion, fifty-nine million, four hundred twelve thousand, six hundred thirty-nine".