8553776499856 has 135 divisors (see below), whose sum is σ = 19583326748979. Its totient is φ = 3608872876224.

The previous prime is 8553776499769. The next prime is 8553776499911. The reversal of 8553776499856 is 6589946773558.

The square root of 8553776499856 is 2924684.

It is a perfect power (a square), and thus also a powerful number.

It is a self number, because there is not a number n which added to its sum of digits gives 8553776499856.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5486706405 + ... + 5486707963.

Almost surely, 2^{8553776499856} is an apocalyptic number.

8553776499856 is the 2924684-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8553776499856

8553776499856 is an abundant number, since it is smaller than the sum of its proper divisors (11029550249123).

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

8553776499856 is an frugal number, since it uses more digits than its factorization.

8553776499856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274 (or 1635 counting only the distinct ones).

The product of its digits is 13716864000, while the sum is 82.

The spelling of 8553776499856 in words is "eight trillion, five hundred fifty-three billion, seven hundred seventy-six million, four hundred ninety-nine thousand, eight hundred fifty-six".