12692917989 has 12 divisors (see below), whose sum is σ = 18335479500. Its totient is φ = 8461361664.

The previous prime is 12692917903. The next prime is 12692918033. The reversal of 12692917989 is 98971929621.

12692917989 is a `hidden beast` number, since 1 + 269 + 291 + 7 + 9 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11415212964 + 1277705025 = 106842^2 + 35745^2 .

It is not a de Polignac number, because 12692917989 - 2¹³ = 12692909797 is a prime.

It is a super-2 number, since 2×12692917989² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12692917889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119787 + ... + 199335.

It is an arithmetic number, because the mean of its divisors is an integer number (1527956625).

Almost surely, 2^12692917989 is an apocalyptic number.

It is an amenable number.

12692917989 is a deficient number, since it is larger than the sum of its proper divisors (5642561511).

12692917989 is a wasteful number, since it uses less digits than its factorization.

12692917989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97284 (or 97281 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 63.

The spelling of 12692917989 in words is "twelve billion, six hundred ninety-two million, nine hundred seventeen thousand, nine hundred eighty-nine".