99785813317 has 8 divisors (see below), whose sum is σ = 101944722816. Its totient is φ = 97628395872.

The previous prime is 99785813297. The next prime is 99785813327. The reversal of 99785813317 is 71331858799.

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 99785813317 - 2¹⁹ = 99785289029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99785813327) 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, 237283 + ... + 505840.

It is an arithmetic number, because the mean of its divisors is an integer number (12743090352).

Almost surely, 2^99785813317 is an apocalyptic number.

It is an amenable number.

99785813317 is a deficient number, since it is larger than the sum of its proper divisors (2158909499).

99785813317 is a wasteful number, since it uses less digits than its factorization.

99785813317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746027.

The product of its digits is 11430720, while the sum is 61.

The spelling of 99785813317 in words is "ninety-nine billion, seven hundred eighty-five million, eight hundred thirteen thousand, three hundred seventeen".