194310683890 has 128 divisors (see below), whose sum is σ = 376640409600. Its totient is φ = 72044743680.

The previous prime is 194310683849. The next prime is 194310683899. The reversal of 194310683890 is 98386013491.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (194310683899) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 194894872 + ... + 194895868.

It is an arithmetic number, because the mean of its divisors is an integer number (2942503200).

Almost surely, 2^194310683890 is an apocalyptic number.

194310683890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194310683890 is a deficient number, since it is larger than the sum of its proper divisors (182329725710).

194310683890 is a wasteful number, since it uses less digits than its factorization.

194310683890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 194310683890 in words is "one hundred ninety-four billion, three hundred ten million, six hundred eighty-three thousand, eight hundred ninety".