8238621064 has 64 divisors (see below), whose sum is σ = 15863040000. Its totient is φ = 4010485248.

The previous prime is 8238621059. The next prime is 8238621089. The reversal of 8238621064 is 4601268328.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16185642 + ... + 16186150.

It is an arithmetic number, because the mean of its divisors is an integer number (247860000).

Almost surely, 2^8238621064 is an apocalyptic number.

It is an amenable number.

8238621064 is a deficient number, since it is larger than the sum of its proper divisors (7624418936).

8238621064 is a wasteful number, since it uses less digits than its factorization.

8238621064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910 (or 906 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 8238621064 is about 90766.8500279700. The cubic root of 8238621064 is about 2019.6905927432.

The spelling of 8238621064 in words is "eight billion, two hundred thirty-eight million, six hundred twenty-one thousand, sixty-four".