78853132864 has 63 divisors (see below), whose sum is σ = 172046202643. Its totient is φ = 35831100800.

The previous prime is 78853132859. The next prime is 78853132889. The reversal of 78853132864 is 46823135887.

The square root of 78853132864 is 280808.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 24709509 + ... + 24712699.

Almost surely, 2^78853132864 is an apocalyptic number.

78853132864 is the 280808-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78853132864

78853132864 is an abundant number, since it is smaller than the sum of its proper divisors (93193069779).

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

78853132864 is an frugal number, since it uses more digits than its factorization.

78853132864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6416 (or 3204 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The spelling of 78853132864 in words is "seventy-eight billion, eight hundred fifty-three million, one hundred thirty-two thousand, eight hundred sixty-four".