13931870405744 has 40 divisors (see below), whose sum is σ = 27924167418960. Its totient is φ = 6725640112128.

The previous prime is 13931870405737. The next prime is 13931870405801. The reversal of 13931870405744 is 44750407813931.

It is a self number, because there is not a number n which added to its sum of digits gives 13931870405744.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45469184 + ... + 45774560.

It is an arithmetic number, because the mean of its divisors is an integer number (698104185474).

Almost surely, 2^{13931870405744} is an apocalyptic number.

It is an amenable number.

13931870405744 is an abundant number, since it is smaller than the sum of its proper divisors (13992297013216).

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

13931870405744 is a wasteful number, since it uses less digits than its factorization.

13931870405744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403737 (or 403731 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 13931870405744 in words is "thirteen trillion, nine hundred thirty-one billion, eight hundred seventy million, four hundred five thousand, seven hundred forty-four".