12596722426 has 4 divisors (see below), whose sum is σ = 18895083642. Its totient is φ = 6298361212.

The previous prime is 12596722387. The next prime is 12596722447. The reversal of 12596722426 is 62422769521.

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

It can be written as a sum of positive squares in only one way, i.e., 12182640625 + 414081801 = 110375^2 + 20349^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3149180605 + ... + 3149180608.

Almost surely, 2^12596722426 is an apocalyptic number.

12596722426 is a deficient number, since it is larger than the sum of its proper divisors (6298361216).

12596722426 is an equidigital number, since it uses as much as digits as its factorization.

12596722426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6298361215.

The product of its digits is 725760, while the sum is 46.

The spelling of 12596722426 in words is "twelve billion, five hundred ninety-six million, seven hundred twenty-two thousand, four hundred twenty-six".