18049474698 has 8 divisors (see below), whose sum is σ = 36098949408. Its totient is φ = 6016491564.

The previous prime is 18049474697. The next prime is 18049474727. The reversal of 18049474698 is 89647494081.

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

18049474698 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18049474697) 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, 1504122886 + ... + 1504122897.

It is an arithmetic number, because the mean of its divisors is an integer number (4512368676).

Almost surely, 2^18049474698 is an apocalyptic number.

18049474698 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18049474698 is a wasteful number, since it uses less digits than its factorization.

18049474698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008245788.

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 18049474698 in words is "eighteen billion, forty-nine million, four hundred seventy-four thousand, six hundred ninety-eight".