8642975894 has 16 divisors (see below), whose sum is σ = 15294483456. Its totient is φ = 3584644200.

The previous prime is 8642975867. The next prime is 8642975923. The reversal of 8642975894 is 4985792468.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9956912 + ... + 9957779.

It is an arithmetic number, because the mean of its divisors is an integer number (955905216).

Almost surely, 2^8642975894 is an apocalyptic number.

8642975894 is a deficient number, since it is larger than the sum of its proper divisors (6651507562).

8642975894 is a wasteful number, since it uses less digits than its factorization.

8642975894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19914731.

The product of its digits is 34836480, while the sum is 62.

The square root of 8642975894 is about 92967.6066917935. The cubic root of 8642975894 is about 2052.2066972636.

The spelling of 8642975894 in words is "eight billion, six hundred forty-two million, nine hundred seventy-five thousand, eight hundred ninety-four".