12704999811696 has 30 divisors (see below), whose sum is σ = 35556353640080. Its totient is φ = 4234999937184.

The previous prime is 12704999811689. The next prime is 12704999811719. The reversal of 12704999811696 is 69611899940721.

12704999811696 is a `hidden beast` number, since 1 + 2 + 70 + 499 + 9 + 8 + 1 + 1 + 69 + 6 = 666.

It is a super-2 number, since 2×12704999811696² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44114582536 + ... + 44114582823.

Almost surely, 2^{12704999811696} is an apocalyptic number.

12704999811696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12704999811696 is an abundant number, since it is smaller than the sum of its proper divisors (22851353828384).

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

12704999811696 is a wasteful number, since it uses less digits than its factorization.

12704999811696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88229165373 (or 88229165364 counting only the distinct ones).

The product of its (nonzero) digits is 105815808, while the sum is 72.

It can be divided in two parts, 12704 and 999811696, that added together give a square (999824400 = 31620²).

The spelling of 12704999811696 in words is "twelve trillion, seven hundred four billion, nine hundred ninety-nine million, eight hundred eleven thousand, six hundred ninety-six".