12905316936 has 24 divisors (see below), whose sum is σ = 34951900230. Its totient is φ = 4301772288.

The previous prime is 12905316887. The next prime is 12905316979. The reversal of 12905316936 is 63961350921.

12905316936 is a `hidden beast` number, since 1 + 29 + 0 + 531 + 6 + 93 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12208040100 + 697276836 = 110490^2 + 26406^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 12905316891 and 12905316900.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89620185 + ... + 89620328.

Almost surely, 2^12905316936 is an apocalyptic number.

It is an amenable number.

12905316936 is an abundant number, since it is smaller than the sum of its proper divisors (22046583294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12905316936 is a wasteful number, since it uses less digits than its factorization.

12905316936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179240525 (or 179240518 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The spelling of 12905316936 in words is "twelve billion, nine hundred five million, three hundred sixteen thousand, nine hundred thirty-six".