78606775296 has 616 divisors, whose sum is σ = 275644107200. Its totient is φ = 22385922048.

The previous prime is 78606775277. The next prime is 78606775333. The reversal of 78606775296 is 69257760687.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 256047975 + ... + 256048281.

It is an arithmetic number, because the mean of its divisors is an integer number (447474200).

Almost surely, 2^78606775296 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 78606775296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137822053600).

78606775296 is an abundant number, since it is smaller than the sum of its proper divisors (197037331904).

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

78606775296 is an frugal number, since it uses more digits than its factorization.

78606775296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 78606775296 in words is "seventy-eight billion, six hundred six million, seven hundred seventy-five thousand, two hundred ninety-six".