12699126792 has 96 divisors (see below), whose sum is σ = 37587195360. Its totient is φ = 3841344000.

The previous prime is 12699126757. The next prime is 12699126809. The reversal of 12699126792 is 29762199621.

It is a super-2 number, since 2×12699126792² (a number of 21 digits) contains 22 as substring.

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, 438192 + ... + 466272.

It is an arithmetic number, because the mean of its divisors is an integer number (391533285).

Almost surely, 2^12699126792 is an apocalyptic number.

12699126792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12699126792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18793597680).

12699126792 is an abundant number, since it is smaller than the sum of its proper divisors (24888068568).

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

12699126792 is a wasteful number, since it uses less digits than its factorization.

12699126792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28675 (or 28668 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The spelling of 12699126792 in words is "twelve billion, six hundred ninety-nine million, one hundred twenty-six thousand, seven hundred ninety-two".