194904909530 has 8 divisors (see below), whose sum is σ = 350828837172. Its totient is φ = 77961963808.

The previous prime is 194904909473. The next prime is 194904909553. The reversal of 194904909530 is 35909409491.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 192553338481 + 2351571049 = 438809^2 + 48493^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9745245467 + ... + 9745245486.

Almost surely, 2^194904909530 is an apocalyptic number.

194904909530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194904909530 is a deficient number, since it is larger than the sum of its proper divisors (155923927642).

194904909530 is a wasteful number, since it uses less digits than its factorization.

194904909530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19490490960.

The product of its (nonzero) digits is 1574640, while the sum is 53.

The spelling of 194904909530 in words is "one hundred ninety-four billion, nine hundred four million, nine hundred nine thousand, five hundred thirty".