8557874136 has 144 divisors (see below), whose sum is σ = 27372243600. Its totient is φ = 2366098560.

The previous prime is 8557874131. The next prime is 8557874173. The reversal of 8557874136 is 6314787558.

It is a happy number.

8557874136 is a `hidden beast` number, since 8 + 557 + 8 + 74 + 13 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8557874131) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 475510 + ... + 493178.

It is an arithmetic number, because the mean of its divisors is an integer number (190085025).

Almost surely, 2^8557874136 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 8557874136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13686121800).

8557874136 is an abundant number, since it is smaller than the sum of its proper divisors (18814369464).

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

8557874136 is a wasteful number, since it uses less digits than its factorization.

8557874136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17750 (or 17712 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The square root of 8557874136 is about 92508.7786969431. The cubic root of 8557874136 is about 2045.4488873777.

The spelling of 8557874136 in words is "eight billion, five hundred fifty-seven million, eight hundred seventy-four thousand, one hundred thirty-six".