13986867979 has 8 divisors (see below), whose sum is σ = 15988474880. Its totient is φ = 11986131816.

The previous prime is 13986867971. The next prime is 13986867991. The reversal of 13986867979 is 97976868931.

13986867979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13986867979 - 2³ = 13986867971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13986867971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182889 + ... + 247834.

It is an arithmetic number, because the mean of its divisors is an integer number (1998559360).

Almost surely, 2^13986867979 is an apocalyptic number.

13986867979 is a deficient number, since it is larger than the sum of its proper divisors (2001606901).

13986867979 is an equidigital number, since it uses as much as digits as its factorization.

13986867979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435369.

The product of its digits is 246903552, while the sum is 73.

The spelling of 13986867979 in words is "thirteen billion, nine hundred eighty-six million, eight hundred sixty-seven thousand, nine hundred seventy-nine".