13979474069 has 4 divisors (see below), whose sum is σ = 15250335360. Its totient is φ = 12708612780.

The previous prime is 13979474063. The next prime is 13979474077. The reversal of 13979474069 is 96047497931.

13979474069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13979474069 - 2²⁸ = 13711038613 is a prime.

It is a super-2 number, since 2×13979474069² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13979473999 and 13979474017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13979474063) 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 3 ways as a sum of consecutive naturals, for example, 635430629 + ... + 635430650.

It is an arithmetic number, because the mean of its divisors is an integer number (3812583840).

Almost surely, 2^13979474069 is an apocalyptic number.

It is an amenable number.

13979474069 is a deficient number, since it is larger than the sum of its proper divisors (1270861291).

13979474069 is a wasteful number, since it uses less digits than its factorization.

13979474069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270861290.

The product of its (nonzero) digits is 10287648, while the sum is 59.

The spelling of 13979474069 in words is "thirteen billion, nine hundred seventy-nine million, four hundred seventy-four thousand, sixty-nine".