12722765004 has 36 divisors (see below), whose sum is σ = 32413565184. Its totient is φ = 4207527072.

The previous prime is 12722764991. The next prime is 12722765023. The reversal of 12722765004 is 40056722721.

It is a happy number.

12722765004 is a `hidden beast` number, since 12 + 72 + 2 + 76 + 500 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12722765004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1386807 + ... + 1395950.

Almost surely, 2^12722765004 is an apocalyptic number.

It is an amenable number.

12722765004 is an abundant number, since it is smaller than the sum of its proper divisors (19690800180).

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

12722765004 is a wasteful number, since it uses less digits than its factorization.

12722765004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782894 (or 2782889 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 12722765004 in words is "twelve billion, seven hundred twenty-two million, seven hundred sixty-five thousand, four".