12295728292 has 18 divisors (see below), whose sum is σ = 22055154674. Its totient is φ = 5997912960.

The previous prime is 12295728281. The next prime is 12295728293. The reversal of 12295728292 is 29282759221.

It can be written as a sum of positive squares in 3 ways, for example, as 491774976 + 11803953316 = 22176^2 + 108646^2 .

It is a super-3 number, since 3×12295728292³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12295728293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 907593 + ... + 921040.

Almost surely, 2^12295728292 is an apocalyptic number.

It is an amenable number.

12295728292 is a deficient number, since it is larger than the sum of its proper divisors (9759426382).

12295728292 is a wasteful number, since it uses less digits than its factorization.

12295728292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828719 (or 1828676 counting only the distinct ones).

The product of its digits is 725760, while the sum is 49.

The spelling of 12295728292 in words is "twelve billion, two hundred ninety-five million, seven hundred twenty-eight thousand, two hundred ninety-two".