8117394432 has 176 divisors, whose sum is σ = 25070214912. Its totient is φ = 2287042560.

The previous prime is 8117394367. The next prime is 8117394457. The reversal of 8117394432 is 2344937118.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 1567207 + ... + 1572377.

Almost surely, 2^8117394432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8117394432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12535107456).

8117394432 is an abundant number, since it is smaller than the sum of its proper divisors (16952820480).

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

8117394432 is a wasteful number, since it uses less digits than its factorization.

8117394432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274 (or 5256 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 8117394432 is about 90096.5839086033. The cubic root of 8117394432 is about 2009.7354034017.

The spelling of 8117394432 in words is "eight billion, one hundred seventeen million, three hundred ninety-four thousand, four hundred thirty-two".