12407022765 has 12 divisors (see below), whose sum is σ = 21505506204. Its totient is φ = 6617078784.

The previous prime is 12407022737. The next prime is 12407022769. The reversal of 12407022765 is 56722070421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2323047204 + 10083975561 = 48198^2 + 100419^2 .

It is not a de Polignac number, because 12407022765 - 2¹⁰ = 12407021741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12407022769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137855764 + ... + 137855853.

It is an arithmetic number, because the mean of its divisors is an integer number (1792125517).

Almost surely, 2^12407022765 is an apocalyptic number.

12407022765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12407022765 is a deficient number, since it is larger than the sum of its proper divisors (9098483439).

12407022765 is a wasteful number, since it uses less digits than its factorization.

12407022765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275711628 (or 275711625 counting only the distinct ones).

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

The spelling of 12407022765 in words is "twelve billion, four hundred seven million, twenty-two thousand, seven hundred sixty-five".