99326403623 has 4 divisors (see below), whose sum is σ = 100442430720. Its totient is φ = 98210376528.

The previous prime is 99326403619. The next prime is 99326403643. The reversal of 99326403623 is 32630462399.

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

It is a cyclic number.

It is not a de Polignac number, because 99326403623 - 2² = 99326403619 is a prime.

It is a super-2 number, since 2×99326403623² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99326403613) 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, 558013415 + ... + 558013592.

It is an arithmetic number, because the mean of its divisors is an integer number (25110607680).

Almost surely, 2^99326403623 is an apocalyptic number.

99326403623 is a deficient number, since it is larger than the sum of its proper divisors (1116027097).

99326403623 is a wasteful number, since it uses less digits than its factorization.

99326403623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116027096.

The product of its (nonzero) digits is 1259712, while the sum is 47.

The spelling of 99326403623 in words is "ninety-nine billion, three hundred twenty-six million, four hundred three thousand, six hundred twenty-three".