99998498669 has 2 divisors, whose sum is σ = 99998498670. Its totient is φ = 99998498668.

The previous prime is 99998498627. The next prime is 99998498723. The reversal of 99998498669 is 96689489999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61958677225 + 38039821444 = 248915^2 + 195038^2 .

It is a cyclic number.

It is not a de Polignac number, because 99998498669 - 2²⁰ = 99997450093 is a prime.

It is a super-2 number, since 2×99998498669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49999249334 + 49999249335.

It is an arithmetic number, because the mean of its divisors is an integer number (49999249335).

Almost surely, 2^99998498669 is an apocalyptic number.

It is an amenable number.

99998498669 is a deficient number, since it is larger than the sum of its proper divisors (1).

99998498669 is an equidigital number, since it uses as much as digits as its factorization.

99998498669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4897760256, while the sum is 86.

The spelling of 99998498669 in words is "ninety-nine billion, nine hundred ninety-eight million, four hundred ninety-eight thousand, six hundred sixty-nine".