70172389053517 has 16 divisors (see below), whose sum is σ = 71241570956160. Its totient is φ = 69103853457408.

The previous prime is 70172389053439. The next prime is 70172389053521. The reversal of 70172389053517 is 71535098327107.

It is a cyclic number.

It is not a de Polignac number, because 70172389053517 - 2¹¹ = 70172389051469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70172389053527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5123187213 + ... + 5123200909.

It is an arithmetic number, because the mean of its divisors is an integer number (4452598184760).

Almost surely, 2^{70172389053517} is an apocalyptic number.

It is an amenable number.

70172389053517 is a deficient number, since it is larger than the sum of its proper divisors (1069181902643).

70172389053517 is a wasteful number, since it uses less digits than its factorization.

70172389053517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31620.

The product of its (nonzero) digits is 11113200, while the sum is 58.

The spelling of 70172389053517 in words is "seventy trillion, one hundred seventy-two billion, three hundred eighty-nine million, fifty-three thousand, five hundred seventeen".