7877339983664 has 80 divisors (see below), whose sum is σ = 16316827531200. Its totient is φ = 3674980024320.

The previous prime is 7877339983657. The next prime is 7877339983703. The reversal of 7877339983664 is 4663899337787.

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, 110061362 + ... + 110132910.

It is an arithmetic number, because the mean of its divisors is an integer number (203960344140).

Almost surely, 2^{7877339983664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7877339983664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8158413765600).

7877339983664 is an abundant number, since it is smaller than the sum of its proper divisors (8439487547536).

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

7877339983664 is a wasteful number, since it uses less digits than its factorization.

7877339983664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78918 (or 78912 counting only the distinct ones).

The product of its digits is 6913299456, while the sum is 80.

The spelling of 7877339983664 in words is "seven trillion, eight hundred seventy-seven billion, three hundred thirty-nine million, nine hundred eighty-three thousand, six hundred sixty-four".