99243378422 has 8 divisors (see below), whose sum is σ = 151673842656. Its totient is φ = 48685430872.

The previous prime is 99243378401. The next prime is 99243378469. The reversal of 99243378422 is 22487334299.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×99243378422² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468129038 + ... + 468129249.

It is an arithmetic number, because the mean of its divisors is an integer number (18959230332).

Almost surely, 2^99243378422 is an apocalyptic number.

99243378422 is a deficient number, since it is larger than the sum of its proper divisors (52430464234).

99243378422 is a wasteful number, since it uses less digits than its factorization.

99243378422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936258342.

The product of its digits is 5225472, while the sum is 53.

The spelling of 99243378422 in words is "ninety-nine billion, two hundred forty-three million, three hundred seventy-eight thousand, four hundred twenty-two".