918718022245 has 16 divisors (see below), whose sum is σ = 1104312391920.
Its totient is φ = 733740851200.
The previous prime is 918718022231. The next prime is 918718022279. The reversal of 918718022245 is 542220817819.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 85320657409 + 833397364836 = 292097^2 + 912906^2
It is a de Polignac number, because none of the positive numbers 2k-918718022245 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50081775 + ... + 50100115.
It is an arithmetic number, because the mean of its divisors is an integer number (69019524495).
Almost surely, 2918718022245 is an apocalyptic number.
It is an amenable number.
918718022245 is a deficient number, since it is larger than the sum of its proper divisors (185594369675).
918718022245 is a wasteful number, since it uses less digits than its factorization.
918718022245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34616.
The product of its (nonzero) digits is 645120, while the sum is 49.
The spelling of 918718022245 in words is "nine hundred eighteen billion, seven hundred eighteen million, twenty-two thousand, two hundred forty-five".