18318128077002 has 96 divisors (see below), whose sum is σ = 43734052397952. Its totient is φ = 5074153767936.

The previous prime is 18318128076967. The next prime is 18318128077003. The reversal of 18318128077002 is 20077082181381.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18318128077003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17147233 + ... + 18184164.

It is an arithmetic number, because the mean of its divisors is an integer number (455563045812).

Almost surely, 2^{18318128077002} is an apocalyptic number.

18318128077002 is an abundant number, since it is smaller than the sum of its proper divisors (25415924320950).

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

18318128077002 is a wasteful number, since it uses less digits than its factorization.

18318128077002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35331472 (or 35331455 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 48.

The spelling of 18318128077002 in words is "eighteen trillion, three hundred eighteen billion, one hundred twenty-eight million, seventy-seven thousand, two".