12694462989 has 64 divisors (see below), whose sum is σ = 20411596800. Its totient is φ = 6932708352.

The previous prime is 12694462973. The next prime is 12694462993. The reversal of 12694462989 is 98926449621.

It is not a de Polignac number, because 12694462989 - 2⁴ = 12694462973 is a prime.

It is a super-2 number, since 2×12694462989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12694462909) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2806872 + ... + 2811390.

It is an arithmetic number, because the mean of its divisors is an integer number (318931200).

Almost surely, 2^12694462989 is an apocalyptic number.

12694462989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12694462989 is a deficient number, since it is larger than the sum of its proper divisors (7717133811).

12694462989 is a wasteful number, since it uses less digits than its factorization.

12694462989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794.

The product of its digits is 13436928, while the sum is 60.

The spelling of 12694462989 in words is "twelve billion, six hundred ninety-four million, four hundred sixty-two thousand, nine hundred eighty-nine".