12699773872 has 20 divisors (see below), whose sum is σ = 24608201760. Its totient is φ = 6349270208.

The previous prime is 12699773861. The next prime is 12699773881. The reversal of 12699773872 is 27837799621.

It is a super-2 number, since 2×12699773872² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12699773872.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163398 + ... + 228250.

It is an arithmetic number, because the mean of its divisors is an integer number (1230410088).

Almost surely, 2^12699773872 is an apocalyptic number.

It is an amenable number.

12699773872 is a deficient number, since it is larger than the sum of its proper divisors (11908427888).

12699773872 is a wasteful number, since it uses less digits than its factorization.

12699773872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77100 (or 77094 counting only the distinct ones).

The product of its digits is 16003008, while the sum is 61.

The spelling of 12699773872 in words is "twelve billion, six hundred ninety-nine million, seven hundred seventy-three thousand, eight hundred seventy-two".