13971976539 has 16 divisors (see below), whose sum is σ = 18869706240. Its totient is φ = 9195081120.

The previous prime is 13971976537. The next prime is 13971976619. The reversal of 13971976539 is 93567917931.

13971976539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13971976539 - 2¹ = 13971976537 is a prime.

It is a super-2 number, since 2×13971976539² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13971976537) 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 15 ways as a sum of consecutive naturals, for example, 9784 + ... + 167450.

It is an arithmetic number, because the mean of its divisors is an integer number (1179356640).

Almost surely, 2^13971976539 is an apocalyptic number.

13971976539 is a deficient number, since it is larger than the sum of its proper divisors (4897729701).

13971976539 is a wasteful number, since it uses less digits than its factorization.

13971976539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158050.

The product of its digits is 9644670, while the sum is 60.

The spelling of 13971976539 in words is "thirteen billion, nine hundred seventy-one million, nine hundred seventy-six thousand, five hundred thirty-nine".