8198550719 has 2 divisors, whose sum is σ = 8198550720. Its totient is φ = 8198550718.

The previous prime is 8198550709. The next prime is 8198550751. The reversal of 8198550719 is 9170558918.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8198550719 - 2²⁴ = 8181773503 is a prime.

It is a super-2 number, since 2×8198550719² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8198550709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4099275359 + 4099275360.

It is an arithmetic number, because the mean of its divisors is an integer number (4099275360).

Almost surely, 2^8198550719 is an apocalyptic number.

8198550719 is a deficient number, since it is larger than the sum of its proper divisors (1).

8198550719 is an equidigital number, since it uses as much as digits as its factorization.

8198550719 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 53.

The square root of 8198550719 is about 90545.8487121304. The cubic root of 8198550719 is about 2016.4108666678.

The spelling of 8198550719 in words is "eight billion, one hundred ninety-eight million, five hundred fifty thousand, seven hundred nineteen".