12696362500 has 36 divisors (see below), whose sum is σ = 27771542820. Its totient is φ = 5078540000.

The previous prime is 12696362491. The next prime is 12696362537. The reversal of 12696362500 is 526369621.

It can be written as a sum of positive squares in 6 ways, for example, as 9797832256 + 2898530244 = 98984^2 + 53838^2 .

It is a super-2 number, since 2×12696362500² (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 11 ways as a sum of consecutive naturals, for example, 495355 + ... + 520354.

It is an arithmetic number, because the mean of its divisors is an integer number (771431745).

Almost surely, 2^12696362500 is an apocalyptic number.

12696362500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12696362500 is an abundant number, since it is smaller than the sum of its proper divisors (15075180320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12696362500 is an equidigital number, since it uses as much as digits as its factorization.

12696362500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015738 (or 1015716 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 12696362500 in words is "twelve billion, six hundred ninety-six million, three hundred sixty-two thousand, five hundred".