13177715345 has 8 divisors (see below), whose sum is σ = 15904665576. Its totient is φ = 10481234176.

The previous prime is 13177715293. The next prime is 13177715347. The reversal of 13177715345 is 54351777131.

It can be written as a sum of positive squares in 4 ways, for example, as 3062183569 + 10115531776 = 55337^2 + 100576^2 .

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 13177715345 - 2²² = 13173521041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13177715296 and 13177715305.

It is not an unprimeable number, because it can be changed into a prime (13177715347) 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, 7616312 + ... + 7618041.

It is an arithmetic number, because the mean of its divisors is an integer number (1988083197).

Almost surely, 2^13177715345 is an apocalyptic number.

It is an amenable number.

13177715345 is a deficient number, since it is larger than the sum of its proper divisors (2726950231).

13177715345 is a wasteful number, since it uses less digits than its factorization.

13177715345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15234531.

The product of its digits is 308700, while the sum is 44.

The spelling of 13177715345 in words is "thirteen billion, one hundred seventy-seven million, seven hundred fifteen thousand, three hundred forty-five".