13132779439 has 16 divisors (see below), whose sum is σ = 14291956224. Its totient is φ = 11995077600.

The previous prime is 13132779403. The next prime is 13132779449. The reversal of 13132779439 is 93497723131.

It is a cyclic number.

It is not a de Polignac number, because 13132779439 - 2¹⁷ = 13132648367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13132779392 and 13132779401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13132779449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2019984 + ... + 2026474.

It is an arithmetic number, because the mean of its divisors is an integer number (893247264).

Almost surely, 2^13132779439 is an apocalyptic number.

13132779439 is a deficient number, since it is larger than the sum of its proper divisors (1159176785).

13132779439 is a wasteful number, since it uses less digits than its factorization.

13132779439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8118.

The product of its digits is 857304, while the sum is 49.

The spelling of 13132779439 in words is "thirteen billion, one hundred thirty-two million, seven hundred seventy-nine thousand, four hundred thirty-nine".