8522574774120 has 640 divisors, whose sum is σ = 32121555903360. Its totient is φ = 2008514672640.

The previous prime is 8522574774059. The next prime is 8522574774191. The reversal of 8522574774120 is 214774752258.

8522574774120 is a `hidden beast` number, since 8 + 5 + 2 + 2 + 574 + 7 + 7 + 41 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2198237622 + ... + 2198241498.

It is an arithmetic number, because the mean of its divisors is an integer number (50189931099).

Almost surely, 2^{8522574774120} 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 8522574774120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16060777951680).

8522574774120 is an abundant number, since it is smaller than the sum of its proper divisors (23598981129240).

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

8522574774120 is a wasteful number, since it uses less digits than its factorization.

8522574774120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615 (or 5602 counting only the distinct ones).

The product of its (nonzero) digits is 8780800, while the sum is 54.

The spelling of 8522574774120 in words is "eight trillion, five hundred twenty-two billion, five hundred seventy-four million, seven hundred seventy-four thousand, one hundred twenty".