18690792285 has 16 divisors (see below), whose sum is σ = 32623928640. Its totient is φ = 9062202240.

The previous prime is 18690792247. The next prime is 18690792299. The reversal of 18690792285 is 58229709681.

It is a happy number.

It is not a de Polignac number, because 18690792285 - 2¹⁵ = 18690759517 is a prime.

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, 56638600 + ... + 56638929.

It is an arithmetic number, because the mean of its divisors is an integer number (2038995540).

Almost surely, 2^18690792285 is an apocalyptic number.

18690792285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18690792285 is a deficient number, since it is larger than the sum of its proper divisors (13933136355).

18690792285 is a wasteful number, since it uses less digits than its factorization.

18690792285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113277548.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 18690792285 in words is "eighteen billion, six hundred ninety million, seven hundred ninety-two thousand, two hundred eighty-five".