98117854423 has 2 divisors, whose sum is σ = 98117854424. Its totient is φ = 98117854422.

The previous prime is 98117854421. The next prime is 98117854489. The reversal of 98117854423 is 32445871189.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 98117854423 - 2¹ = 98117854421 is a prime.

It is a super-2 number, since 2×98117854423² (a number of 23 digits) contains 22 as substring.

Together with 98117854421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98117854421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49058927211 + 49058927212.

It is an arithmetic number, because the mean of its divisors is an integer number (49058927212).

Almost surely, 2^98117854423 is an apocalyptic number.

98117854423 is a deficient number, since it is larger than the sum of its proper divisors (1).

98117854423 is an equidigital number, since it uses as much as digits as its factorization.

98117854423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 52.

The spelling of 98117854423 in words is "ninety-eight billion, one hundred seventeen million, eight hundred fifty-four thousand, four hundred twenty-three".