10998744818 has 8 divisors (see below), whose sum is σ = 16502797548. Its totient is φ = 5497812304.

The previous prime is 10998744817. The next prime is 10998744839. The reversal of 10998744818 is 81844789901.

It can be written as a sum of positive squares in 2 ways, for example, as 10941787609 + 56957209 = 104603^2 + 7547^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10998744817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771221 + ... + 785352.

Almost surely, 2^10998744818 is an apocalyptic number.

10998744818 is a deficient number, since it is larger than the sum of its proper divisors (5504052730).

10998744818 is a wasteful number, since it uses less digits than its factorization.

10998744818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560108.

The product of its (nonzero) digits is 4644864, while the sum is 59.

The spelling of 10998744818 in words is "ten billion, nine hundred ninety-eight million, seven hundred forty-four thousand, eight hundred eighteen".