12959791642 has 16 divisors (see below), whose sum is σ = 22548381120. Its totient is φ = 5471297568.

The previous prime is 12959791597. The next prime is 12959791651. The reversal of 12959791642 is 24619795921.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6907267 + ... + 6909142.

It is an arithmetic number, because the mean of its divisors is an integer number (1409273820).

Almost surely, 2^12959791642 is an apocalyptic number.

12959791642 is a deficient number, since it is larger than the sum of its proper divisors (9588589478).

12959791642 is a wasteful number, since it uses less digits than its factorization.

12959791642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13816485.

The product of its digits is 2449440, while the sum is 55.

The spelling of 12959791642 in words is "twelve billion, nine hundred fifty-nine million, seven hundred ninety-one thousand, six hundred forty-two".