7892816880 has 80 divisors (see below), whose sum is σ = 26349876000. Its totient is φ = 1942846464.

The previous prime is 7892816861. The next prime is 7892816903. The reversal of 7892816880 is 886182987.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 7892816880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1261755 + ... + 1267994.

It is an arithmetic number, because the mean of its divisors is an integer number (329373450).

Almost surely, 2^7892816880 is an apocalyptic number.

It is an amenable number.

7892816880 is an abundant number, since it is smaller than the sum of its proper divisors (18457059120).

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

7892816880 is a wasteful number, since it uses less digits than its factorization.

7892816880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529778 (or 2529772 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 57.

The square root of 7892816880 is about 88841.5267766150. The cubic root of 7892816880 is about 1991.0278840885.

The spelling of 7892816880 in words is "seven billion, eight hundred ninety-two million, eight hundred sixteen thousand, eight hundred eighty".