18099478042 has 8 divisors (see below), whose sum is σ = 27780594336. Its totient is φ = 8839279932.

The previous prime is 18099478039. The next prime is 18099478051. The reversal of 18099478042 is 24087499081.

It is a happy number.

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

It is a super-2 number, since 2×18099478042² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105229438 + ... + 105229609.

It is an arithmetic number, because the mean of its divisors is an integer number (3472574292).

Almost surely, 2^18099478042 is an apocalyptic number.

18099478042 is a deficient number, since it is larger than the sum of its proper divisors (9681116294).

18099478042 is a wasteful number, since it uses less digits than its factorization.

18099478042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210459092.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 18099478042 in words is "eighteen billion, ninety-nine million, four hundred seventy-eight thousand, forty-two".