78960438018 has 48 divisors (see below), whose sum is σ = 213295732416. Its totient is φ = 20509204320.

The previous prime is 78960438017. The next prime is 78960438049. The reversal of 78960438018 is 81083406987.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78960438017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28483621 + ... + 28486392.

It is an arithmetic number, because the mean of its divisors is an integer number (4443661092).

Almost surely, 2^78960438018 is an apocalyptic number.

78960438018 is an abundant number, since it is smaller than the sum of its proper divisors (134335294398).

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

78960438018 is a wasteful number, since it uses less digits than its factorization.

78960438018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56970039 (or 56970036 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 78960438018 in words is "seventy-eight billion, nine hundred sixty million, four hundred thirty-eight thousand, eighteen".