198963783941 has 16 divisors (see below), whose sum is σ = 217353628800. Its totient is φ = 181033469760.

The previous prime is 198963783937. The next prime is 198963783959. The reversal of 198963783941 is 149387369891.

It is not a de Polignac number, because 198963783941 - 2² = 198963783937 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198963783961) 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 in 15 ways as a sum of consecutive naturals, for example, 138305 + ... + 645798.

It is an arithmetic number, because the mean of its divisors is an integer number (13584601800).

Almost surely, 2^198963783941 is an apocalyptic number.

It is an amenable number.

198963783941 is a deficient number, since it is larger than the sum of its proper divisors (18389844859).

198963783941 is a wasteful number, since it uses less digits than its factorization.

198963783941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784396.

The product of its digits is 70543872, while the sum is 68.

The spelling of 198963783941 in words is "one hundred ninety-eight billion, nine hundred sixty-three million, seven hundred eighty-three thousand, nine hundred forty-one".