18000075090078 has 48 divisors (see below), whose sum is σ = 41725799653200. Its totient is φ = 5591050064640.

The previous prime is 18000075090073. The next prime is 18000075090079. The reversal of 18000075090078 is 87009057000081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18000075090073) 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, 431387323 + ... + 431429046.

It is an arithmetic number, because the mean of its divisors is an integer number (869287492775).

Almost surely, 2^{18000075090078} is an apocalyptic number.

18000075090078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18000075090078 is an abundant number, since it is smaller than the sum of its proper divisors (23725724563122).

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

18000075090078 is a wasteful number, since it uses less digits than its factorization.

18000075090078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862816457 (or 862816454 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The spelling of 18000075090078 in words is "eighteen trillion, seventy-five million, ninety thousand, seventy-eight".