194533649630 has 16 divisors (see below), whose sum is σ = 353560188384. Its totient is φ = 77057988960.

The previous prime is 194533649593. The next prime is 194533649663. The reversal of 194533649630 is 36946335491.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 94432781 + ... + 94434840.

It is an arithmetic number, because the mean of its divisors is an integer number (22097511774).

Almost surely, 2^194533649630 is an apocalyptic number.

194533649630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194533649630 is a deficient number, since it is larger than the sum of its proper divisors (159026538754).

194533649630 is a wasteful number, since it uses less digits than its factorization.

194533649630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188867731.

The product of its (nonzero) digits is 6298560, while the sum is 53.

The spelling of 194533649630 in words is "one hundred ninety-four billion, five hundred thirty-three million, six hundred forty-nine thousand, six hundred thirty".