13997931880823 has 16 divisors (see below), whose sum is σ = 15682324684320. Its totient is φ = 12383744947200.

The previous prime is 13997931880819. The next prime is 13997931880847. The reversal of 13997931880823 is 32808813979931.

It is not a de Polignac number, because 13997931880823 - 2² = 13997931880819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13997931880423) 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, 38911058 + ... + 39269151.

It is an arithmetic number, because the mean of its divisors is an integer number (980145292770).

Almost surely, 2^{13997931880823} is an apocalyptic number.

13997931880823 is a deficient number, since it is larger than the sum of its proper divisors (1684392803497).

13997931880823 is a wasteful number, since it uses less digits than its factorization.

13997931880823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78180658.

The product of its (nonzero) digits is 141087744, while the sum is 71.

The spelling of 13997931880823 in words is "thirteen trillion, nine hundred ninety-seven billion, nine hundred thirty-one million, eight hundred eighty thousand, eight hundred twenty-three".