15779376912 has 40 divisors (see below), whose sum is σ = 43899037504. Its totient is φ = 4855192704.

The previous prime is 15779376901. The next prime is 15779376961. The reversal of 15779376912 is 21967397751.

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, 12643108 + ... + 12644355.

Almost surely, 2^15779376912 is an apocalyptic number.

15779376912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15779376912 is an abundant number, since it is smaller than the sum of its proper divisors (28119660592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15779376912 is a wasteful number, since it uses less digits than its factorization.

15779376912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25287487 (or 25287481 counting only the distinct ones).

The product of its digits is 5000940, while the sum is 57.

The spelling of 15779376912 in words is "fifteen billion, seven hundred seventy-nine million, three hundred seventy-six thousand, nine hundred twelve".