78059207784 has 64 divisors (see below), whose sum is σ = 198513901440. Its totient is φ = 25571669760.

The previous prime is 78059207771. The next prime is 78059207843. The reversal of 78059207784 is 48770295087.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1768674 + ... + 1812270.

It is an arithmetic number, because the mean of its divisors is an integer number (3101779710).

Almost surely, 2^78059207784 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 78059207784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99256950720).

78059207784 is an abundant number, since it is smaller than the sum of its proper divisors (120454693656).

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

78059207784 is a wasteful number, since it uses less digits than its factorization.

78059207784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44890 (or 44886 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 57.

The spelling of 78059207784 in words is "seventy-eight billion, fifty-nine million, two hundred seven thousand, seven hundred eighty-four".