12694677393 has 32 divisors (see below), whose sum is σ = 18798027264. Its totient is φ = 7585062912.

The previous prime is 12694677371. The next prime is 12694677407. The reversal of 12694677393 is 39377649621.

It is not a de Polignac number, because 12694677393 - 2¹³ = 12694669201 is a prime.

It is a super-2 number, since 2×12694677393² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12694677323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17121 + ... + 160257.

It is an arithmetic number, because the mean of its divisors is an integer number (587438352).

Almost surely, 2^12694677393 is an apocalyptic number.

It is an amenable number.

12694677393 is a deficient number, since it is larger than the sum of its proper divisors (6103349871).

12694677393 is a wasteful number, since it uses less digits than its factorization.

12694677393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143241.

The product of its digits is 10287648, while the sum is 57.

The spelling of 12694677393 in words is "twelve billion, six hundred ninety-four million, six hundred seventy-seven thousand, three hundred ninety-three".