18820579695 has 16 divisors (see below), whose sum is σ = 30115139712. Its totient is φ = 10036905120.

The previous prime is 18820579693. The next prime is 18820579709. The reversal of 18820579695 is 59697502881.

It is not a de Polignac number, because 18820579695 - 2¹ = 18820579693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18820579693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211260 + ... + 286830.

It is an arithmetic number, because the mean of its divisors is an integer number (1882196232).

Almost surely, 2^18820579695 is an apocalyptic number.

18820579695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18820579695 is a deficient number, since it is larger than the sum of its proper divisors (11294560017).

18820579695 is a wasteful number, since it uses less digits than its factorization.

18820579695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92182.

The product of its (nonzero) digits is 10886400, while the sum is 60.

The spelling of 18820579695 in words is "eighteen billion, eight hundred twenty million, five hundred seventy-nine thousand, six hundred ninety-five".