244995800018 has 18 divisors (see below), whose sum is σ = 371073762423. Its totient is φ = 121315960140.

The previous prime is 244995799967. The next prime is 244995800039. The reversal of 244995800018 is 810008599442.

It can be written as a sum of positive squares in only one way, i.e., 122497900009 + 122497900009 = 349997^2 + 349997^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=349997.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 74897723 + ... + 74900993.

Almost surely, 2^244995800018 is an apocalyptic number.

244995800018 is a deficient number, since it is larger than the sum of its proper divisors (126077962405).

244995800018 is an frugal number, since it uses more digits than its factorization.

244995800018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6758 (or 3380 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

Multiplying 244995800018 by its sum of digits (50), we get a square (12249790000900 = 3499970²).

The spelling of 244995800018 in words is "two hundred forty-four billion, nine hundred ninety-five million, eight hundred thousand, eighteen".