13931709504 has 112 divisors (see below), whose sum is σ = 39362603520. Its totient is φ = 4339077120.

The previous prime is 13931709499. The next prime is 13931709509. The reversal of 13931709504 is 40590713931.

It is an interprime number because it is at equal distance from previous prime (13931709499) and next prime (13931709509).

It is not an unprimeable number, because it can be changed into a prime (13931709509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132252 + ... + 212964.

Almost surely, 2^13931709504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13931709504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19681301760).

13931709504 is an abundant number, since it is smaller than the sum of its proper divisors (25430894016).

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

13931709504 is a wasteful number, since it uses less digits than its factorization.

13931709504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80788 (or 80778 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The spelling of 13931709504 in words is "thirteen billion, nine hundred thirty-one million, seven hundred nine thousand, five hundred four".