918418945090 has 8 divisors (see below), whose sum is σ = 1653154101180. Its totient is φ = 367367578032.

The previous prime is 918418945079. The next prime is 918418945097. The reversal of 918418945090 is 90549814819.

It can be written as a sum of positive squares in 2 ways, for example, as 745879231449 + 172539713641 = 863643^2 + 415379^2 .

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

It is not an unprimeable number, because it can be changed into a prime (918418945097) 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, 45920947245 + ... + 45920947264.

Almost surely, 2^918418945090 is an apocalyptic number.

918418945090 is a deficient number, since it is larger than the sum of its proper divisors (734735156090).

918418945090 is a wasteful number, since it uses less digits than its factorization.

918418945090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91841894516.

The product of its (nonzero) digits is 3732480, while the sum is 58.

The spelling of 918418945090 in words is "nine hundred eighteen billion, four hundred eighteen million, nine hundred forty-five thousand, ninety".