8518355723956 has 96 divisors (see below), whose sum is σ = 17476351603200. Its totient is φ = 3597243500544.

The previous prime is 8518355723947. The next prime is 8518355723987. The reversal of 8518355723956 is 6593275538158.

It is a junction number, because it is equal to n+sod(n) for n = 8518355723891 and 8518355723900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5502651 + ... + 6878653.

It is an arithmetic number, because the mean of its divisors is an integer number (182045329200).

Almost surely, 2^{8518355723956} is an apocalyptic number.

It is an amenable number.

8518355723956 is an abundant number, since it is smaller than the sum of its proper divisors (8957995879244).

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

8518355723956 is a wasteful number, since it uses less digits than its factorization.

8518355723956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376233 (or 1376231 counting only the distinct ones).

The product of its digits is 272160000, while the sum is 67.

The spelling of 8518355723956 in words is "eight trillion, five hundred eighteen billion, three hundred fifty-five million, seven hundred twenty-three thousand, nine hundred fifty-six".