12809238964 has 24 divisors (see below), whose sum is σ = 22804422368. Its totient is φ = 6293881440.

The previous prime is 12809238941. The next prime is 12809238973. The reversal of 12809238964 is 46983290821.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 250639 + ... + 297385.

Almost surely, 2^12809238964 is an apocalyptic number.

It is an amenable number.

12809238964 is a deficient number, since it is larger than the sum of its proper divisors (9995183404).

12809238964 is a wasteful number, since it uses less digits than its factorization.

12809238964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47935 (or 47933 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 12809238964 in words is "twelve billion, eight hundred nine million, two hundred thirty-eight thousand, nine hundred sixty-four".