12698599976 has 16 divisors (see below), whose sum is σ = 23947506900. Its totient is φ = 6312598144.

The previous prime is 12698599961. The next prime is 12698599999. The reversal of 12698599976 is 67999589621.

It can be written as a sum of positive squares in 2 ways, for example, as 12304577476 + 394022500 = 110926^2 + 19850^2 .

It is a super-2 number, since 2×12698599976² (a number of 21 digits) contains 22 as substring.

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, 4586261 + ... + 4589028.

Almost surely, 2^12698599976 is an apocalyptic number.

It is an amenable number.

12698599976 is a deficient number, since it is larger than the sum of its proper divisors (11248906924).

12698599976 is a wasteful number, since it uses less digits than its factorization.

12698599976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175468 (or 9175464 counting only the distinct ones).

The product of its digits is 132269760, while the sum is 71.

The spelling of 12698599976 in words is "twelve billion, six hundred ninety-eight million, five hundred ninety-nine thousand, nine hundred seventy-six".