99435853499 has 4 divisors (see below), whose sum is σ = 101065949520. Its totient is φ = 97805757480.

The previous prime is 99435853481. The next prime is 99435853523.

99435853499 is nontrivially palindromic in base 10.

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 99435853499 - 2²⁰ = 99434804923 is a prime.

It is a super-2 number, since 2×99435853499² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99435853409) by changing a digit.

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, 815047919 + ... + 815048040.

It is an arithmetic number, because the mean of its divisors is an integer number (25266487380).

Almost surely, 2^99435853499 is an apocalyptic number.

99435853499 is a deficient number, since it is larger than the sum of its proper divisors (1630096021).

99435853499 is a wasteful number, since it uses less digits than its factorization.

99435853499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630096020.

The product of its digits is 188956800, while the sum is 68.

The spelling of 99435853499 in words is "ninety-nine billion, four hundred thirty-five million, eight hundred fifty-three thousand, four hundred ninety-nine".