18495015318612 has 120 divisors (see below), whose sum is σ = 55627563868800. Its totient is φ = 5248824960960.

The previous prime is 18495015318583. The next prime is 18495015318617. The reversal of 18495015318612 is 21681351059481.

18495015318612 is a `hidden beast` number, since 1 + 8 + 4 + 9 + 5 + 0 + 1 + 5 + 3 + 18 + 612 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18495015318617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27027064 + ... + 27702927.

It is an arithmetic number, because the mean of its divisors is an integer number (463563032240).

Almost surely, 2^{18495015318612} is an apocalyptic number.

18495015318612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18495015318612 is an abundant number, since it is smaller than the sum of its proper divisors (37132548550188).

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

18495015318612 is a wasteful number, since it uses less digits than its factorization.

18495015318612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54730163 (or 54730152 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 54.

The spelling of 18495015318612 in words is "eighteen trillion, four hundred ninety-five billion, fifteen million, three hundred eighteen thousand, six hundred twelve".