12503832705 has 160 divisors (see below), whose sum is σ = 28540512000. Its totient is φ = 5093964288.

The previous prime is 12503832659. The next prime is 12503832727. The reversal of 12503832705 is 50723830521.

It is a happy number.

12503832705 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 383 + 270 + 5 = 666.

It is not a de Polignac number, because 12503832705 - 2⁶ = 12503832641 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12503832705.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1062946 + ... + 1074644.

It is an arithmetic number, because the mean of its divisors is an integer number (178378200).

Almost surely, 2^12503832705 is an apocalyptic number.

12503832705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12503832705 is an abundant number, since it is smaller than the sum of its proper divisors (16036679295).

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

12503832705 is a wasteful number, since it uses less digits than its factorization.

12503832705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11765 (or 11756 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 12503832705 in words is "twelve billion, five hundred three million, eight hundred thirty-two thousand, seven hundred five".