198798822007 has 2 divisors, whose sum is σ = 198798822008. Its totient is φ = 198798822006.

The previous prime is 198798821971. The next prime is 198798822023. The reversal of 198798822007 is 700228897891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198798822007 - 2²⁷ = 198664604279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198798822077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99399411003 + 99399411004.

It is an arithmetic number, because the mean of its divisors is an integer number (99399411004).

Almost surely, 2^198798822007 is an apocalyptic number.

198798822007 is a deficient number, since it is larger than the sum of its proper divisors (1).

198798822007 is an equidigital number, since it uses as much as digits as its factorization.

198798822007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 61.

The spelling of 198798822007 in words is "one hundred ninety-eight billion, seven hundred ninety-eight million, eight hundred twenty-two thousand, seven".