8542637808 has 40 divisors (see below), whose sum is σ = 22074051456. Its totient is φ = 2846827200.

The previous prime is 8542637773. The next prime is 8542637809. The reversal of 8542637808 is 8087362458.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8542637809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190503 + ... + 231033.

Almost surely, 2^8542637808 is an apocalyptic number.

It is an amenable number.

8542637808 is an abundant number, since it is smaller than the sum of its proper divisors (13531413648).

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

8542637808 is a wasteful number, since it uses less digits than its factorization.

8542637808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44933 (or 44927 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The square root of 8542637808 is about 92426.3912959929. The cubic root of 8542637808 is about 2044.2342693816.

The spelling of 8542637808 in words is "eight billion, five hundred forty-two million, six hundred thirty-seven thousand, eight hundred eight".