8394331680 has 144 divisors (see below), whose sum is σ = 32737932864. Its totient is φ = 1918702080.

The previous prime is 8394331679. The next prime is 8394331703. The reversal of 8394331680 is 861334938.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 406306 + ... + 426465.

It is an arithmetic number, because the mean of its divisors is an integer number (227346756).

Almost surely, 2^8394331680 is an apocalyptic number.

8394331680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8394331680 is an abundant number, since it is smaller than the sum of its proper divisors (24343601184).

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

8394331680 is a wasteful number, since it uses less digits than its factorization.

8394331680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832799 (or 832788 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 8394331680 is about 91620.5854598190. The cubic root of 8394331680 is about 2032.3353679009.

The spelling of 8394331680 in words is "eight billion, three hundred ninety-four million, three hundred thirty-one thousand, six hundred eighty".