8513455048956 has 864 divisors, whose sum is σ = 28819888231680. Its totient is φ = 2091348357120.

The previous prime is 8513455048951. The next prime is 8513455048957. The reversal of 8513455048956 is 6598405543158.

8513455048956 is a `hidden beast` number, since 8 + 5 + 1 + 3 + 45 + 504 + 89 + 5 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 8513455048893 and 8513455048902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8513455048951) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1225483075 + ... + 1225490021.

It is an arithmetic number, because the mean of its divisors is an integer number (33356352120).

Almost surely, 2^{8513455048956} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8513455048956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14409944115840).

8513455048956 is an abundant number, since it is smaller than the sum of its proper divisors (20306433182724).

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

8513455048956 is a wasteful number, since it uses less digits than its factorization.

8513455048956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7095 (or 7079 counting only the distinct ones).

The product of its (nonzero) digits is 103680000, while the sum is 63.

The spelling of 8513455048956 in words is "eight trillion, five hundred thirteen billion, four hundred fifty-five million, forty-eight thousand, nine hundred fifty-six".