12689035494912 has 120 divisors (see below), whose sum is σ = 41853046496976. Its totient is φ = 3625438703616.

The previous prime is 12689035494907. The next prime is 12689035494937. The reversal of 12689035494912 is 21949453098621.

12689035494912 is a `hidden beast` number, since 1 + 2 + 6 + 8 + 90 + 3 + 54 + 9 + 491 + 2 = 666.

It is a super-2 number, since 2×12689035494912² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 12689035494912.

It is a congruent number.

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, 196660383 + ... + 196724894.

Almost surely, 2^{12689035494912} is an apocalyptic number.

12689035494912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12689035494912 is an abundant number, since it is smaller than the sum of its proper divisors (29164011002064).

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

12689035494912 is an equidigital number, since it uses as much as digits as its factorization.

12689035494912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393385308 (or 393385289 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 12689035494912 in words is "twelve trillion, six hundred eighty-nine billion, thirty-five million, four hundred ninety-four thousand, nine hundred twelve".