12694396371426 has 72 divisors (see below), whose sum is σ = 34551139476672. Its totient is φ = 3297245806800.

The previous prime is 12694396371383. The next prime is 12694396371431. The reversal of 12694396371426 is 62417369349621.

It is a happy number.

12694396371426 is a `hidden beast` number, since 1 + 2 + 6 + 94 + 3 + 96 + 37 + 1 + 426 = 666.

12694396371426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12694396371426² (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 an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 416303670 + ... + 416334161.

It is an arithmetic number, because the mean of its divisors is an integer number (479876937176).

Almost surely, 2^{12694396371426} is an apocalyptic number.

12694396371426 is an abundant number, since it is smaller than the sum of its proper divisors (21856743105246).

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

12694396371426 is a wasteful number, since it uses less digits than its factorization.

12694396371426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832637868 (or 832637854 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 63.

The spelling of 12694396371426 in words is "twelve trillion, six hundred ninety-four billion, three hundred ninety-six million, three hundred seventy-one thousand, four hundred twenty-six".