98193889919 has 2 divisors, whose sum is σ = 98193889920. Its totient is φ = 98193889918.

The previous prime is 98193889889. The next prime is 98193889931. The reversal of 98193889919 is 91998839189.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (91998839189) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98193889919 is a prime.

It is a super-2 number, since 2×98193889919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98193889939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49096944959 + 49096944960.

It is an arithmetic number, because the mean of its divisors is an integer number (49096944960).

Almost surely, 2^98193889919 is an apocalyptic number.

98193889919 is a deficient number, since it is larger than the sum of its proper divisors (1).

98193889919 is an equidigital number, since it uses as much as digits as its factorization.

98193889919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90699264, while the sum is 74.

The spelling of 98193889919 in words is "ninety-eight billion, one hundred ninety-three million, eight hundred eighty-nine thousand, nine hundred nineteen".