13958512979 has 4 divisors (see below), whose sum is σ = 13966625400. Its totient is φ = 13950400560.

The previous prime is 13958512961. The next prime is 13958513021. The reversal of 13958512979 is 97921585931.

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 13958512979 - 2¹⁶ = 13958447443 is a prime.

It is a super-2 number, since 2×13958512979² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13958512679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4053629 + ... + 4057070.

It is an arithmetic number, because the mean of its divisors is an integer number (3491656350).

Almost surely, 2^13958512979 is an apocalyptic number.

13958512979 is a deficient number, since it is larger than the sum of its proper divisors (8112421).

13958512979 is an equidigital number, since it uses as much as digits as its factorization.

13958512979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8112420.

The product of its digits is 6123600, while the sum is 59.

The spelling of 13958512979 in words is "thirteen billion, nine hundred fifty-eight million, five hundred twelve thousand, nine hundred seventy-nine".