13881271775 has 24 divisors (see below), whose sum is σ = 19702310400. Its totient is φ = 9503796960.

The previous prime is 13881271757. The next prime is 13881271777. The reversal of 13881271775 is 57717218831.

It is not a de Polignac number, because 13881271775 - 2¹⁰ = 13881270751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881271777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51926 + ... + 174524.

It is an arithmetic number, because the mean of its divisors is an integer number (820929600).

Almost surely, 2^13881271775 is an apocalyptic number.

13881271775 is a deficient number, since it is larger than the sum of its proper divisors (5821038625).

13881271775 is a wasteful number, since it uses less digits than its factorization.

13881271775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123263 (or 123258 counting only the distinct ones).

The product of its digits is 658560, while the sum is 50.

The spelling of 13881271775 in words is "thirteen billion, eight hundred eighty-one million, two hundred seventy-one thousand, seven hundred seventy-five".