99933859873 has 4 divisors (see below), whose sum is σ = 99934689348. Its totient is φ = 99933030400.

The previous prime is 99933859853. The next prime is 99933859889. The reversal of 99933859873 is 37895833999.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 50424049809 + 49509810064 = 224553^2 + 222508^2 .

It is a cyclic number.

It is not a de Polignac number, because 99933859873 - 2⁵ = 99933859841 is a prime.

It is a super-2 number, since 2×99933859873² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99933859796 and 99933859805.

It is not an unprimeable number, because it can be changed into a prime (99933859853) 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, 195328 + ... + 487873.

It is an arithmetic number, because the mean of its divisors is an integer number (24983672337).

Almost surely, 2^99933859873 is an apocalyptic number.

It is an amenable number.

99933859873 is a deficient number, since it is larger than the sum of its proper divisors (829475).

99933859873 is a wasteful number, since it uses less digits than its factorization.

99933859873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829474.

The product of its digits is 396809280, while the sum is 73.

The spelling of 99933859873 in words is "ninety-nine billion, nine hundred thirty-three million, eight hundred fifty-nine thousand, eight hundred seventy-three".