12928125292004 has 24 divisors (see below), whose sum is σ = 24371567666040. Its totient is φ = 5965106932224.

The previous prime is 12928125291997. The next prime is 12928125292007. The reversal of 12928125292004 is 40029252182921.

It can be written as a sum of positive squares in 4 ways, for example, as 1130823813604 + 11797301478400 = 1063402^2 + 3434720^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12928125292004.

It is not an unprimeable number, because it can be changed into a prime (12928125292007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35653829 + ... + 36014604.

It is an arithmetic number, because the mean of its divisors is an integer number (1015481986085).

Almost surely, 2^{12928125292004} is an apocalyptic number.

It is an amenable number.

12928125292004 is a deficient number, since it is larger than the sum of its proper divisors (11443442374036).

12928125292004 is a wasteful number, since it uses less digits than its factorization.

12928125292004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71671919 (or 71671917 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 12928125292004 in words is "twelve trillion, nine hundred twenty-eight billion, one hundred twenty-five million, two hundred ninety-two thousand, four".