3121644704 has 24 divisors (see below), whose sum is σ = 6237469728. Its totient is φ = 1537525440.

The previous prime is 3121644689. The next prime is 3121644733. The reversal of 3121644704 is 4074461213.

It is a super-2 number, since 2×3121644704² = 19489331316022495232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725852 + ... + 730139.

It is an arithmetic number, because the mean of its divisors is an integer number (259894572).

Almost surely, 2^3121644704 is an apocalyptic number.

It is an amenable number.

3121644704 is a deficient number, since it is larger than the sum of its proper divisors (3115825024).

3121644704 is a wasteful number, since it uses less digits than its factorization.

3121644704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456068 (or 1456060 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 3121644704 is about 55871.6806978276. The cubic root of 3121644704 is about 1461.4854313231.

The spelling of 3121644704 in words is "three billion, one hundred twenty-one million, six hundred forty-four thousand, seven hundred four".