12722491892 has 24 divisors (see below), whose sum is σ = 25717124160. Its totient is φ = 5442776960.

The previous prime is 12722491891. The next prime is 12722491897. The reversal of 12722491892 is 29819422721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12722491891) 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, 8503592 + ... + 8505087.

It is an arithmetic number, because the mean of its divisors is an integer number (1071546840).

Almost surely, 2^12722491892 is an apocalyptic number.

It is an amenable number.

12722491892 is an abundant number, since it is smaller than the sum of its proper divisors (12994632268).

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

12722491892 is a wasteful number, since it uses less digits than its factorization.

12722491892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17008711 (or 17008709 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The spelling of 12722491892 in words is "twelve billion, seven hundred twenty-two million, four hundred ninety-one thousand, eight hundred ninety-two".