13881137757 has 4 divisors (see below), whose sum is σ = 18508183680. Its totient is φ = 9254091836.

The previous prime is 13881137741. The next prime is 13881137759. The reversal of 13881137757 is 75773118831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13881137757 - 2⁴ = 13881137741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881137759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2313522957 + ... + 2313522962.

It is an arithmetic number, because the mean of its divisors is an integer number (4627045920).

Almost surely, 2^13881137757 is an apocalyptic number.

It is an amenable number.

13881137757 is a deficient number, since it is larger than the sum of its proper divisors (4627045923).

13881137757 is an equidigital number, since it uses as much as digits as its factorization.

13881137757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4627045922.

The product of its digits is 987840, while the sum is 51.

The spelling of 13881137757 in words is "thirteen billion, eight hundred eighty-one million, one hundred thirty-seven thousand, seven hundred fifty-seven".