3121563525464 has 16 divisors (see below), whose sum is σ = 5853402403200. Its totient is φ = 1560656217952.

The previous prime is 3121563525449. The next prime is 3121563525469. The reversal of 3121563525464 is 4645253651213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121563525469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15587384 + ... + 15786375.

It is an arithmetic number, because the mean of its divisors is an integer number (365837650200).

Almost surely, 2^{3121563525464} is an apocalyptic number.

It is an amenable number.

3121563525464 is a deficient number, since it is larger than the sum of its proper divisors (2731838877736).

3121563525464 is a wasteful number, since it uses less digits than its factorization.

3121563525464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31386202 (or 31386198 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 47.

The spelling of 3121563525464 in words is "three trillion, one hundred twenty-one billion, five hundred sixty-three million, five hundred twenty-five thousand, four hundred sixty-four".