12695100688 has 20 divisors (see below), whose sum is σ = 24600714268. Its totient is φ = 6346529280.

The previous prime is 12695100661. The next prime is 12695100731. The reversal of 12695100688 is 88600159621.

It can be written as a sum of positive squares in 2 ways, for example, as 4265657344 + 8429443344 = 65312^2 + 91812^2 .

It is a super-2 number, since 2×12695100688² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44308 + ... + 165388.

Almost surely, 2^12695100688 is an apocalyptic number.

It is an amenable number.

12695100688 is a deficient number, since it is larger than the sum of its proper divisors (11905613580).

12695100688 is a wasteful number, since it uses less digits than its factorization.

12695100688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127642 (or 127636 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 12695100688 in words is "twelve billion, six hundred ninety-five million, one hundred thousand, six hundred eighty-eight".