78057647104 has 66 divisors (see below), whose sum is σ = 164333692220. Its totient is φ = 36956215296.

The previous prime is 78057647093. The next prime is 78057647131. The reversal of 78057647104 is 40174675087.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38969367 + ... + 38971369.

Almost surely, 2^78057647104 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 78057647104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82166846110).

78057647104 is an abundant number, since it is smaller than the sum of its proper divisors (86276045116).

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

78057647104 is an frugal number, since it uses more digits than its factorization.

78057647104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 49.

The spelling of 78057647104 in words is "seventy-eight billion, fifty-seven million, six hundred forty-seven thousand, one hundred four".