78930067710 has 128 divisors (see below), whose sum is σ = 219735774720. Its totient is φ = 17978236416.

The previous prime is 78930067687. The next prime is 78930067747. The reversal of 78930067710 is 1776003987.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 78930067710.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 194772 + ... + 442488.

It is an arithmetic number, because the mean of its divisors is an integer number (1716685740).

Almost surely, 2^78930067710 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78930067710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109867887360).

78930067710 is an abundant number, since it is smaller than the sum of its proper divisors (140805707010).

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

78930067710 is a wasteful number, since it uses less digits than its factorization.

78930067710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247802.

The product of its (nonzero) digits is 444528, while the sum is 48.

The spelling of 78930067710 in words is "seventy-eight billion, nine hundred thirty million, sixty-seven thousand, seven hundred ten".