99389794634 has 8 divisors (see below), whose sum is σ = 160552745220. Its totient is φ = 45872212896.

The previous prime is 99389794633. The next prime is 99389794643. The reversal of 99389794634 is 43649798399.

It can be written as a sum of positive squares in 2 ways, for example, as 99160120609 + 229674025 = 314897^2 + 15155^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99389794633) 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, 1911342179 + ... + 1911342230.

Almost surely, 2^99389794634 is an apocalyptic number.

99389794634 is a deficient number, since it is larger than the sum of its proper divisors (61162950586).

99389794634 is a wasteful number, since it uses less digits than its factorization.

99389794634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822684424.

The product of its digits is 317447424, while the sum is 71.

The spelling of 99389794634 in words is "ninety-nine billion, three hundred eighty-nine million, seven hundred ninety-four thousand, six hundred thirty-four".