13376987999 has 4 divisors (see below), whose sum is σ = 14163869664. Its totient is φ = 12590106336.

The previous prime is 13376987989. The next prime is 13376988043. The reversal of 13376987999 is 99978967331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13376987999 - 2¹⁶ = 13376922463 is a prime.

It is a super-3 number, since 3×13376987999³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13376987929) 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, 393440807 + ... + 393440840.

It is an arithmetic number, because the mean of its divisors is an integer number (3540967416).

Almost surely, 2^13376987999 is an apocalyptic number.

13376987999 is a deficient number, since it is larger than the sum of its proper divisors (786881665).

13376987999 is an equidigital number, since it uses as much as digits as its factorization.

13376987999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786881664.

The product of its digits is 138883248, while the sum is 71.

The spelling of 13376987999 in words is "thirteen billion, three hundred seventy-six million, nine hundred eighty-seven thousand, nine hundred ninety-nine".