99822382493 has 4 divisors (see below), whose sum is σ = 99843477948. Its totient is φ = 99801287040.

The previous prime is 99822382483. The next prime is 99822382511. The reversal of 99822382493 is 39428322899.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9848180644 + 89974201849 = 99238^2 + 299957^2 .

It is a cyclic number.

It is not a de Polignac number, because 99822382493 - 2⁴ = 99822382477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99822382403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10540628 + ... + 10550093.

It is an arithmetic number, because the mean of its divisors is an integer number (24960869487).

Almost surely, 2^99822382493 is an apocalyptic number.

It is an amenable number.

99822382493 is a deficient number, since it is larger than the sum of its proper divisors (21095455).

99822382493 is a wasteful number, since it uses less digits than its factorization.

99822382493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21095454.

The product of its digits is 13436928, while the sum is 59.

The spelling of 99822382493 in words is "ninety-nine billion, eight hundred twenty-two million, three hundred eighty-two thousand, four hundred ninety-three".