99421033609 has 8 divisors (see below), whose sum is σ = 99766018080. Its totient is φ = 99076385856.

The previous prime is 99421033603. The next prime is 99421033661. The reversal of 99421033609 is 90633012499.

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

It is a cyclic number.

It is not a de Polignac number, because 99421033609 - 2¹⁵ = 99421000841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99421033603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514737 + ... + 681025.

It is an arithmetic number, because the mean of its divisors is an integer number (12470752260).

Almost surely, 2^99421033609 is an apocalyptic number.

It is an amenable number.

99421033609 is a deficient number, since it is larger than the sum of its proper divisors (344984471).

99421033609 is a wasteful number, since it uses less digits than its factorization.

99421033609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168359.

The product of its (nonzero) digits is 314928, while the sum is 46.

The spelling of 99421033609 in words is "ninety-nine billion, four hundred twenty-one million, thirty-three thousand, six hundred nine".