13175507681 has 8 divisors (see below), whose sum is σ = 15066326784. Its totient is φ = 11286839520.

The previous prime is 13175507663. The next prime is 13175507689. The reversal of 13175507681 is 18670557131.

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 13175507681 - 2¹⁰ = 13175506657 is a prime.

It is a super-2 number, since 2×13175507681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13175507689) 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, 524585 + ... + 549126.

It is an arithmetic number, because the mean of its divisors is an integer number (1883290848).

Almost surely, 2^13175507681 is an apocalyptic number.

It is an amenable number.

13175507681 is a deficient number, since it is larger than the sum of its proper divisors (1890819103).

13175507681 is a wasteful number, since it uses less digits than its factorization.

13175507681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075471.

The product of its (nonzero) digits is 176400, while the sum is 44.

It can be divided in two parts, 1317550 and 7681, that added together give a palindrome (1325231).

The spelling of 13175507681 in words is "thirteen billion, one hundred seventy-five million, five hundred seven thousand, six hundred eighty-one".