8516961992 has 64 divisors (see below), whose sum is σ = 20247321600. Its totient is φ = 3262040640.

The previous prime is 8516961977. The next prime is 8516961997. The reversal of 8516961992 is 2991696158.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (8516961997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80828 + ... + 153515.

It is an arithmetic number, because the mean of its divisors is an integer number (316364400).

Almost surely, 2^8516961992 is an apocalyptic number.

It is an amenable number.

8516961992 is an abundant number, since it is smaller than the sum of its proper divisors (11730359608).

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

8516961992 is a wasteful number, since it uses less digits than its factorization.

8516961992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234426 (or 234422 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 56.

The square root of 8516961992 is about 92287.3880440876. The cubic root of 8516961992 is about 2042.1841588024.

The spelling of 8516961992 in words is "eight billion, five hundred sixteen million, nine hundred sixty-one thousand, nine hundred ninety-two".