12997587669 has 16 divisors (see below), whose sum is σ = 18933295104. Its totient is φ = 7865778800.

The previous prime is 12997587667. The next prime is 12997587703. The reversal of 12997587669 is 96678579921.

It is not a de Polignac number, because 12997587669 - 2¹ = 12997587667 is a prime.

It is a super-2 number, since 2×12997587669² (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 (12997587667) 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 15 ways as a sum of consecutive naturals, for example, 265797 + ... + 310874.

It is an arithmetic number, because the mean of its divisors is an integer number (1183330944).

Almost surely, 2^12997587669 is an apocalyptic number.

It is an amenable number.

12997587669 is a deficient number, since it is larger than the sum of its proper divisors (5935707435).

12997587669 is a wasteful number, since it uses less digits than its factorization.

12997587669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577368.

The product of its digits is 102876480, while the sum is 69.

The spelling of 12997587669 in words is "twelve billion, nine hundred ninety-seven million, five hundred eighty-seven thousand, six hundred sixty-nine".