715157857865 has 16 divisors (see below), whose sum is σ = 936574983936. Its totient is φ = 519910176000.

The previous prime is 715157857753. The next prime is 715157857871. The reversal of 715157857865 is 568758751517.

It is not a de Polignac number, because 715157857865 - 2¹² = 715157853769 is a prime.

It is a super-2 number, since 2×715157857865² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2416736 + ... + 2696465.

It is an arithmetic number, because the mean of its divisors is an integer number (58535936496).

Almost surely, 2^715157857865 is an apocalyptic number.

It is an amenable number.

715157857865 is a deficient number, since it is larger than the sum of its proper divisors (221417126071).

715157857865 is a wasteful number, since it uses less digits than its factorization.

715157857865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115760.

The product of its digits is 82320000, while the sum is 65.

The spelling of 715157857865 in words is "seven hundred fifteen billion, one hundred fifty-seven million, eight hundred fifty-seven thousand, eight hundred sixty-five".