13777513889 has 4 divisors (see below), whose sum is σ = 14376536256. Its totient is φ = 13178491524.

The previous prime is 13777513873. The next prime is 13777513901. The reversal of 13777513889 is 98831577731.

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 13777513889 - 2⁴ = 13777513873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13777513289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299511149 + ... + 299511194.

It is an arithmetic number, because the mean of its divisors is an integer number (3594134064).

Almost surely, 2^13777513889 is an apocalyptic number.

It is an amenable number.

13777513889 is a deficient number, since it is larger than the sum of its proper divisors (599022367).

13777513889 is an equidigital number, since it uses as much as digits as its factorization.

13777513889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599022366.

The product of its digits is 8890560, while the sum is 59.

The spelling of 13777513889 in words is "thirteen billion, seven hundred seventy-seven million, five hundred thirteen thousand, eight hundred eighty-nine".