8231713352778 has 32 divisors (see below), whose sum is σ = 16473281961600. Its totient is φ = 2742262338816.

The previous prime is 8231713352729. The next prime is 8231713352783. The reversal of 8231713352778 is 8772533171328.

It is a super-2 number, since 2×8231713352778² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82656918 + ... + 82756446.

It is an arithmetic number, because the mean of its divisors is an integer number (514790061300).

Almost surely, 2^{8231713352778} is an apocalyptic number.

8231713352778 is an abundant number, since it is smaller than the sum of its proper divisors (8241568608822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8231713352778 is a wasteful number, since it uses less digits than its factorization.

8231713352778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107646.

The product of its digits is 11854080, while the sum is 57.

The spelling of 8231713352778 in words is "eight trillion, two hundred thirty-one billion, seven hundred thirteen million, three hundred fifty-two thousand, seven hundred seventy-eight".