8238619664 has 20 divisors (see below), whose sum is σ = 17413446480. Its totient is φ = 3744827040.

The previous prime is 8238619661. The next prime is 8238619673. The reversal of 8238619664 is 4669168328.

It is not an unprimeable number, because it can be changed into a prime (8238619661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23404994 + ... + 23405345.

It is an arithmetic number, because the mean of its divisors is an integer number (870672324).

Almost surely, 2^8238619664 is an apocalyptic number.

It is an amenable number.

8238619664 is an abundant number, since it is smaller than the sum of its proper divisors (9174826816).

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

8238619664 is a wasteful number, since it uses less digits than its factorization.

8238619664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46810358 (or 46810352 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The square root of 8238619664 is about 90766.8423159030. The cubic root of 8238619664 is about 2019.6904783403.

The spelling of 8238619664 in words is "eight billion, two hundred thirty-eight million, six hundred nineteen thousand, six hundred sixty-four".