918182363690 has 32 divisors (see below), whose sum is σ = 1668063220560. Its totient is φ = 363865872384.

The previous prime is 918182363671. The next prime is 918182363701. The reversal of 918182363690 is 96363281819.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 729191321329 + 188991042361 = 853927^2 + 434731^2 .

It is a super-2 number, since 2×918182363690² (a number of 25 digits) contains 22 as substring.

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, 12053402 + ... + 12129338.

Almost surely, 2^918182363690 is an apocalyptic number.

918182363690 is a deficient number, since it is larger than the sum of its proper divisors (749880856870).

918182363690 is a wasteful number, since it uses less digits than its factorization.

918182363690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87146.

The product of its (nonzero) digits is 3359232, while the sum is 56.

The spelling of 918182363690 in words is "nine hundred eighteen billion, one hundred eighty-two million, three hundred sixty-three thousand, six hundred ninety".