12926837128 has 16 divisors (see below), whose sum is σ = 25663573980. Its totient is φ = 6083217408.

The previous prime is 12926837107. The next prime is 12926837173. The reversal of 12926837128 is 82173862921.

It can be written as a sum of positive squares in 2 ways, for example, as 10862225284 + 2064611844 = 104222^2 + 45438^2 .

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, 47525001 + ... + 47525272.

Almost surely, 2^12926837128 is an apocalyptic number.

It is an amenable number.

12926837128 is a deficient number, since it is larger than the sum of its proper divisors (12736736852).

12926837128 is a wasteful number, since it uses less digits than its factorization.

12926837128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95050296 (or 95050292 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The spelling of 12926837128 in words is "twelve billion, nine hundred twenty-six million, eight hundred thirty-seven thousand, one hundred twenty-eight".