12789106920 has 96 divisors (see below), whose sum is σ = 41595016320. Its totient is φ = 3407932800.

The previous prime is 12789106907. The next prime is 12789106949. The reversal of 12789106920 is 2960198721.

It is a super-2 number, since 2×12789106920² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 508645 + ... + 533195.

It is an arithmetic number, because the mean of its divisors is an integer number (433281420).

Almost surely, 2^12789106920 is an apocalyptic number.

12789106920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12789106920 is an abundant number, since it is smaller than the sum of its proper divisors (28805909400).

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

12789106920 is a wasteful number, since it uses less digits than its factorization.

12789106920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26015 (or 26008 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 12789106920 in words is "twelve billion, seven hundred eighty-nine million, one hundred six thousand, nine hundred twenty".