12799391952 has 40 divisors (see below), whose sum is σ = 34805366560. Its totient is φ = 4041912960.

The previous prime is 12799391939. The next prime is 12799391959. The reversal of 12799391952 is 25919399721.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 12799391892 and 12799391901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12799391959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7016299 + ... + 7018122.

It is an arithmetic number, because the mean of its divisors is an integer number (870134164).

Almost surely, 2^12799391952 is an apocalyptic number.

12799391952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12799391952 is an abundant number, since it is smaller than the sum of its proper divisors (22005974608).

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

12799391952 is a wasteful number, since it uses less digits than its factorization.

12799391952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14034451 (or 14034445 counting only the distinct ones).

The product of its digits is 2755620, while the sum is 57.

The spelling of 12799391952 in words is "twelve billion, seven hundred ninety-nine million, three hundred ninety-one thousand, nine hundred fifty-two".