78740822336 has 112 divisors (see below), whose sum is σ = 172139530752. Its totient is φ = 35439206400.

The previous prime is 78740822323. The next prime is 78740822393. The reversal of 78740822336 is 63322804787.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50248625 + ... + 50250191.

It is an arithmetic number, because the mean of its divisors is an integer number (1536960096).

Almost surely, 2^78740822336 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 78740822336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86069765376).

78740822336 is an abundant number, since it is smaller than the sum of its proper divisors (93398708416).

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

78740822336 is a wasteful number, since it uses less digits than its factorization.

78740822336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 78740822336 in words is "seventy-eight billion, seven hundred forty million, eight hundred twenty-two thousand, three hundred thirty-six".