18315776087796 has 48 divisors (see below), whose sum is σ = 47412178490880. Its totient is φ = 5456163393120.

The previous prime is 18315776087767. The next prime is 18315776087821. The reversal of 18315776087796 is 69778067751381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1175889496 + ... + 1175905071.

It is an arithmetic number, because the mean of its divisors is an integer number (987753718560).

Almost surely, 2^{18315776087796} is an apocalyptic number.

It is an amenable number.

18315776087796 is an abundant number, since it is smaller than the sum of its proper divisors (29096402403084).

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

18315776087796 is a wasteful number, since it uses less digits than its factorization.

18315776087796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351794644 (or 2351794642 counting only the distinct ones).

The product of its (nonzero) digits is 746807040, while the sum is 75.

The spelling of 18315776087796 in words is "eighteen trillion, three hundred fifteen billion, seven hundred seventy-six million, eighty-seven thousand, seven hundred ninety-six".