19086326618 has 16 divisors (see below), whose sum is σ = 28764607680. Its totient is φ = 9498150816.

The previous prime is 19086326587. The next prime is 19086326621. The reversal of 19086326618 is 81662368091.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2483630 + ... + 2491302.

It is an arithmetic number, because the mean of its divisors is an integer number (1797787980).

Almost surely, 2^19086326618 is an apocalyptic number.

19086326618 is a deficient number, since it is larger than the sum of its proper divisors (9678281062).

19086326618 is a wasteful number, since it uses less digits than its factorization.

19086326618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13381.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 19086326618 in words is "nineteen billion, eighty-six million, three hundred twenty-six thousand, six hundred eighteen".