12502371605 has 4 divisors (see below), whose sum is σ = 15002845932. Its totient is φ = 10001897280.

The previous prime is 12502371599. The next prime is 12502371643. The reversal of 12502371605 is 50617320521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9103831396 + 3398540209 = 95414^2 + 58297^2 .

It is not a de Polignac number, because 12502371605 - 2²² = 12498177301 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1250237156 + ... + 1250237165.

It is an arithmetic number, because the mean of its divisors is an integer number (3750711483).

Almost surely, 2^12502371605 is an apocalyptic number.

It is an amenable number.

12502371605 is a deficient number, since it is larger than the sum of its proper divisors (2500474327).

12502371605 is an equidigital number, since it uses as much as digits as its factorization.

12502371605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500474326.

The product of its (nonzero) digits is 12600, while the sum is 32.

The spelling of 12502371605 in words is "twelve billion, five hundred two million, three hundred seventy-one thousand, six hundred five".