18594019642 has 16 divisors (see below), whose sum is σ = 30563027712. Its totient is φ = 8413924320.

The previous prime is 18594019607. The next prime is 18594019649. The reversal of 18594019642 is 24691049581.

It is not an unprimeable number, because it can be changed into a prime (18594019649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1890123 + ... + 1899934.

It is an arithmetic number, because the mean of its divisors is an integer number (1910189232).

Almost surely, 2^18594019642 is an apocalyptic number.

18594019642 is a deficient number, since it is larger than the sum of its proper divisors (11969008070).

18594019642 is a wasteful number, since it uses less digits than its factorization.

18594019642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790293.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 18594019642 in words is "eighteen billion, five hundred ninety-four million, nineteen thousand, six hundred forty-two".