99683783517 has 4 divisors (see below), whose sum is σ = 132911711360. Its totient is φ = 66455855676.

The previous prime is 99683783509. The next prime is 99683783531. The reversal of 99683783517 is 71538738699.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 99683783517 - 2³ = 99683783509 is a prime.

It is a super-3 number, since 3×99683783517³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99683783567) 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, 16613963917 + ... + 16613963922.

It is an arithmetic number, because the mean of its divisors is an integer number (33227927840).

Almost surely, 2^99683783517 is an apocalyptic number.

It is an amenable number.

99683783517 is a deficient number, since it is larger than the sum of its proper divisors (33227927843).

99683783517 is a wasteful number, since it uses less digits than its factorization.

99683783517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33227927842.

The product of its digits is 68584320, while the sum is 66.

The spelling of 99683783517 in words is "ninety-nine billion, six hundred eighty-three million, seven hundred eighty-three thousand, five hundred seventeen".