9902459023543 has 2 divisors, whose sum is σ = 9902459023544. Its totient is φ = 9902459023542.

The previous prime is 9902459023459. The next prime is 9902459023559. The reversal of 9902459023543 is 3453209542099.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9902459023543 - 2²⁹ = 9901922152631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9902459023843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4951229511771 + 4951229511772.

It is an arithmetic number, because the mean of its divisors is an integer number (4951229511772).

Almost surely, 2^{9902459023543} is an apocalyptic number.

9902459023543 is a deficient number, since it is larger than the sum of its proper divisors (1).

9902459023543 is an equidigital number, since it uses as much as digits as its factorization.

9902459023543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10497600, while the sum is 55.

The spelling of 9902459023543 in words is "nine trillion, nine hundred two billion, four hundred fifty-nine million, twenty-three thousand, five hundred forty-three".