8178798964 has 12 divisors (see below), whose sum is σ = 16357597984. Its totient is φ = 3505199544.

The previous prime is 8178798959. The next prime is 8178798989. The reversal of 8178798964 is 4698978718.

8178798964 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 8178798964.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146049954 + ... + 146050009.

Almost surely, 2^8178798964 is an apocalyptic number.

It is an amenable number.

8178798964 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8178798964 is a wasteful number, since it uses less digits than its factorization.

8178798964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292099974 (or 292099972 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 67.

The square root of 8178798964 is about 90436.7124789485. The cubic root of 8178798964 is about 2014.7902680356.

The spelling of 8178798964 in words is "eight billion, one hundred seventy-eight million, seven hundred ninety-eight thousand, nine hundred sixty-four".