18497305790 has 32 divisors (see below), whose sum is σ = 35082288000. Its totient is φ = 7002553248.

The previous prime is 18497305727. The next prime is 18497305891. The reversal of 18497305790 is 9750379481.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145841 + ... + 241379.

It is an arithmetic number, because the mean of its divisors is an integer number (1096321500).

Almost surely, 2^18497305790 is an apocalyptic number.

18497305790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18497305790 is a deficient number, since it is larger than the sum of its proper divisors (16584982210).

18497305790 is a wasteful number, since it uses less digits than its factorization.

18497305790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96584.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 18497305790 in words is "eighteen billion, four hundred ninety-seven million, three hundred five thousand, seven hundred ninety".