78780331708016 has 40 divisors (see below), whose sum is σ = 159276779815200. Its totient is φ = 37676721874176.

The previous prime is 78780331708003. The next prime is 78780331708033. The reversal of 78780331708016 is 61080713308787.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14579726 + ... + 19238738.

It is an arithmetic number, because the mean of its divisors is an integer number (3981919495380).

Almost surely, 2^{78780331708016} is an apocalyptic number.

It is an amenable number.

78780331708016 is an abundant number, since it is smaller than the sum of its proper divisors (80496448107184).

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

78780331708016 is a wasteful number, since it uses less digits than its factorization.

78780331708016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704993 (or 4704987 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 59.

The spelling of 78780331708016 in words is "seventy-eight trillion, seven hundred eighty billion, three hundred thirty-one million, seven hundred eight thousand, sixteen".