12793920722 has 30 divisors (see below), whose sum is σ = 21141822645. Its totient is φ = 5806620600.

The previous prime is 12793920721. The next prime is 12793920739. The reversal of 12793920722 is 22702939721.

It can be written as a sum of positive squares in 2 ways, for example, as 11571089761 + 1222830961 = 107569^2 + 34969^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=79981.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12793920721) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 19355072 + ... + 19355732.

Almost surely, 2^12793920722 is an apocalyptic number.

12793920722 is a deficient number, since it is larger than the sum of its proper divisors (8347901923).

12793920722 is an frugal number, since it uses more digits than its factorization.

12793920722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 44.

The spelling of 12793920722 in words is "twelve billion, seven hundred ninety-three million, nine hundred twenty thousand, seven hundred twenty-two".