13938397711 has 8 divisors (see below), whose sum is σ = 16199591040. Its totient is φ = 11744702808.

The previous prime is 13938397709. The next prime is 13938397717. The reversal of 13938397711 is 11779383931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13938397711 - 2¹ = 13938397709 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 (13938397717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16874161 + ... + 16874986.

It is an arithmetic number, because the mean of its divisors is an integer number (2024948880).

Almost surely, 2^13938397711 is an apocalyptic number.

13938397711 is a deficient number, since it is larger than the sum of its proper divisors (2261193329).

13938397711 is an equidigital number, since it uses as much as digits as its factorization.

13938397711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33749213.

The product of its digits is 857304, while the sum is 52.

The spelling of 13938397711 in words is "thirteen billion, nine hundred thirty-eight million, three hundred ninety-seven thousand, seven hundred eleven".