12692534399 has 4 divisors (see below), whose sum is σ = 12696835536. Its totient is φ = 12688233264.

The previous prime is 12692534363. The next prime is 12692534513. The reversal of 12692534399 is 99343529621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99343529621 = 7 ⋅14191932803.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12692534399 is a prime.

It is a super-2 number, since 2×12692534399² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12692534399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12692534329) 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 3 ways as a sum of consecutive naturals, for example, 2146139 + ... + 2152044.

It is an arithmetic number, because the mean of its divisors is an integer number (3174208884).

Almost surely, 2^12692534399 is an apocalyptic number.

12692534399 is a deficient number, since it is larger than the sum of its proper divisors (4301137).

12692534399 is an equidigital number, since it uses as much as digits as its factorization.

12692534399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301136.

The product of its digits is 3149280, while the sum is 53.

The spelling of 12692534399 in words is "twelve billion, six hundred ninety-two million, five hundred thirty-four thousand, three hundred ninety-nine".