13439761392 has 80 divisors (see below), whose sum is σ = 35945511840. Its totient is φ = 4321959936.

The previous prime is 13439761381. The next prime is 13439761393. The reversal of 13439761392 is 29316793431.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13439761393) 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, 2158668 + ... + 2164884.

It is an arithmetic number, because the mean of its divisors is an integer number (449318898).

Almost surely, 2^13439761392 is an apocalyptic number.

13439761392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13439761392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17972755920).

13439761392 is an abundant number, since it is smaller than the sum of its proper divisors (22505750448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13439761392 is a wasteful number, since it uses less digits than its factorization.

13439761392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7810 (or 7804 counting only the distinct ones).

The product of its digits is 734832, while the sum is 48.

The spelling of 13439761392 in words is "thirteen billion, four hundred thirty-nine million, seven hundred sixty-one thousand, three hundred ninety-two".