13715481765 has 32 divisors (see below), whose sum is σ = 23242222080. Its totient is φ = 6882683904.

The previous prime is 13715481733. The next prime is 13715481779. The reversal of 13715481765 is 56718451731.

It is not a de Polignac number, because 13715481765 - 2⁵ = 13715481733 is a prime.

It is a super-2 number, since 2×13715481765² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1412196 + ... + 1421874.

It is an arithmetic number, because the mean of its divisors is an integer number (726319440).

Almost surely, 2^13715481765 is an apocalyptic number.

13715481765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13715481765 is a deficient number, since it is larger than the sum of its proper divisors (9526740315).

13715481765 is a wasteful number, since it uses less digits than its factorization.

13715481765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15261.

The product of its digits is 705600, while the sum is 48.

The spelling of 13715481765 in words is "thirteen billion, seven hundred fifteen million, four hundred eighty-one thousand, seven hundred sixty-five".