194502543212 has 6 divisors (see below), whose sum is σ = 340379450628. Its totient is φ = 97251271604.

The previous prime is 194502543133. The next prime is 194502543217. The reversal of 194502543212 is 212345205491.

It is not an unprimeable number, because it can be changed into a prime (194502543217) by changing a digit.

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 as a sum of consecutive naturals, namely, 24312817898 + ... + 24312817905.

It is an arithmetic number, because the mean of its divisors is an integer number (56729908438).

Almost surely, 2^194502543212 is an apocalyptic number.

It is an amenable number.

194502543212 is a deficient number, since it is larger than the sum of its proper divisors (145876907416).

194502543212 is a wasteful number, since it uses less digits than its factorization.

194502543212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48625635807 (or 48625635805 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 194502543212 in words is "one hundred ninety-four billion, five hundred two million, five hundred forty-three thousand, two hundred twelve".