18073285878 has 16 divisors (see below), whose sum is σ = 36148815360. Its totient is φ = 6024054696.

The previous prime is 18073285847. The next prime is 18073285931. The reversal of 18073285878 is 87858237081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22263 + ... + 191421.

It is an arithmetic number, because the mean of its divisors is an integer number (2259300960).

Almost surely, 2^18073285878 is an apocalyptic number.

18073285878 is an abundant number, since it is smaller than the sum of its proper divisors (18075529482).

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

18073285878 is a wasteful number, since it uses less digits than its factorization.

18073285878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186971.

The product of its (nonzero) digits is 6021120, while the sum is 57.

The spelling of 18073285878 in words is "eighteen billion, seventy-three million, two hundred eighty-five thousand, eight hundred seventy-eight".