18497927090 has 32 divisors (see below), whose sum is σ = 35185173120. Its totient is φ = 6982447104.

The previous prime is 18497927089. The next prime is 18497927117. The reversal of 18497927090 is 9072979481.

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, 140582 + ... + 238241.

It is an arithmetic number, because the mean of its divisors is an integer number (1099536660).

Almost surely, 2^18497927090 is an apocalyptic number.

18497927090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18497927090 is a deficient number, since it is larger than the sum of its proper divisors (16687246030).

18497927090 is a wasteful number, since it uses less digits than its factorization.

18497927090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379106.

The product of its (nonzero) digits is 2286144, while the sum is 56.

The spelling of 18497927090 in words is "eighteen billion, four hundred ninety-seven million, nine hundred twenty-seven thousand, ninety".