8616521937 has 4 divisors (see below), whose sum is σ = 11488695920. Its totient is φ = 5744347956.

The previous prime is 8616521867. The next prime is 8616522017. The reversal of 8616521937 is 7391256168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8616521937 - 2²³ = 8608133329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8616521237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436086987 + ... + 1436086992.

It is an arithmetic number, because the mean of its divisors is an integer number (2872173980).

Almost surely, 2^8616521937 is an apocalyptic number.

It is an amenable number.

8616521937 is a deficient number, since it is larger than the sum of its proper divisors (2872173983).

8616521937 is a wasteful number, since it uses less digits than its factorization.

8616521937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872173982.

The product of its digits is 544320, while the sum is 48.

The square root of 8616521937 is about 92825.2225259924. Note that the first 3 decimals coincide. The cubic root of 8616521937 is about 2050.1107960740.

The spelling of 8616521937 in words is "eight billion, six hundred sixteen million, five hundred twenty-one thousand, nine hundred thirty-seven".