198625811983 has 2 divisors, whose sum is σ = 198625811984. Its totient is φ = 198625811982.

The previous prime is 198625811963. The next prime is 198625812031. The reversal of 198625811983 is 389118526891.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198625811983 - 2¹³ = 198625803791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198625811963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99312905991 + 99312905992.

It is an arithmetic number, because the mean of its divisors is an integer number (99312905992).

Almost surely, 2^198625811983 is an apocalyptic number.

198625811983 is a deficient number, since it is larger than the sum of its proper divisors (1).

198625811983 is an equidigital number, since it uses as much as digits as its factorization.

198625811983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 61.

The spelling of 198625811983 in words is "one hundred ninety-eight billion, six hundred twenty-five million, eight hundred eleven thousand, nine hundred eighty-three".