18747016365 has 64 divisors (see below), whose sum is σ = 37605980160. Its totient is φ = 7747357440.

The previous prime is 18747016333. The next prime is 18747016369. The reversal of 18747016365 is 56361074781.

It is not a de Polignac number, because 18747016365 - 2⁵ = 18747016333 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18747016369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161407 + ... + 252083.

It is an arithmetic number, because the mean of its divisors is an integer number (587593440).

Almost surely, 2^18747016365 is an apocalyptic number.

18747016365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18747016365 is an abundant number, since it is smaller than the sum of its proper divisors (18858963795).

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

18747016365 is a wasteful number, since it uses less digits than its factorization.

18747016365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90882.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 18747016365 in words is "eighteen billion, seven hundred forty-seven million, sixteen thousand, three hundred sixty-five".