918718022243 has 16 divisors (see below), whose sum is σ = 1074431297280. Its totient is φ = 769123416096.

The previous prime is 918718022231. The next prime is 918718022279. The reversal of 918718022243 is 342220817819.

It is not a de Polignac number, because 918718022243 - 2¹⁶ = 918717956707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918718022203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7863428 + ... + 7979406.

It is an arithmetic number, because the mean of its divisors is an integer number (67151956080).

Almost surely, 2^918718022243 is an apocalyptic number.

918718022243 is a deficient number, since it is larger than the sum of its proper divisors (155713275037).

918718022243 is a wasteful number, since it uses less digits than its factorization.

918718022243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142346.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 918718022243 in words is "nine hundred eighteen billion, seven hundred eighteen million, twenty-two thousand, two hundred forty-three".