12905623961684 has 24 divisors (see below), whose sum is σ = 22612898385000. Its totient is φ = 6444798156800.

The previous prime is 12905623961639. The next prime is 12905623961731. The reversal of 12905623961684 is 48616932650921.

It can be written as a sum of positive squares in 4 ways, for example, as 810684144400 + 12094939817284 = 900380^2 + 3477778^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22386692 + ... + 22955940.

It is an arithmetic number, because the mean of its divisors is an integer number (942204099375).

Almost surely, 2^{12905623961684} is an apocalyptic number.

It is an amenable number.

12905623961684 is a deficient number, since it is larger than the sum of its proper divisors (9707274423316).

12905623961684 is a wasteful number, since it uses less digits than its factorization.

12905623961684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576283 (or 576281 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 62.

The spelling of 12905623961684 in words is "twelve trillion, nine hundred five billion, six hundred twenty-three million, nine hundred sixty-one thousand, six hundred eighty-four".