194535322618 has 32 divisors (see below), whose sum is σ = 359358136704. Its totient is φ = 76912742592.

The previous prime is 194535322547. The next prime is 194535322621. The reversal of 194535322618 is 816223535491.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17205 + ... + 623992.

It is an arithmetic number, because the mean of its divisors is an integer number (11229941772).

Almost surely, 2^194535322618 is an apocalyptic number.

194535322618 is a deficient number, since it is larger than the sum of its proper divisors (164822814086).

194535322618 is a wasteful number, since it uses less digits than its factorization.

194535322618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642886.

The product of its digits is 1555200, while the sum is 49.

The spelling of 194535322618 in words is "one hundred ninety-four billion, five hundred thirty-five million, three hundred twenty-two thousand, six hundred eighteen".