8447051904 has 32 divisors (see below), whose sum is σ = 22437482640. Its totient is φ = 2815683840.

The previous prime is 8447051897. The next prime is 8447051909. The reversal of 8447051904 is 4091507448.

It is a tau number, because it is divible by the number of its divisors (32).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8447051909) 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, 10998382 + ... + 10999149.

Almost surely, 2^8447051904 is an apocalyptic number.

It is an amenable number.

8447051904 is an abundant number, since it is smaller than the sum of its proper divisors (13990430736).

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

8447051904 is a wasteful number, since it uses less digits than its factorization.

8447051904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21997548 (or 21997536 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 8447051904 is about 91907.8446271046. The cubic root of 8447051904 is about 2036.5811555136.

The spelling of 8447051904 in words is "eight billion, four hundred forty-seven million, fifty-one thousand, nine hundred four".