99983587745 has 16 divisors (see below), whose sum is σ = 122793052800. Its totient is φ = 78112387584.

The previous prime is 99983587741. The next prime is 99983587747. The reversal of 99983587745 is 54778538999.

It is a cyclic number.

It is not a de Polignac number, because 99983587745 - 2² = 99983587741 is a prime.

It is a super-2 number, since 2×99983587745² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (74) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99983587741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219556 + ... + 1298954.

It is an arithmetic number, because the mean of its divisors is an integer number (7674565800).

Almost surely, 2^99983587745 is an apocalyptic number.

It is an amenable number.

99983587745 is a deficient number, since it is larger than the sum of its proper divisors (22809465055).

99983587745 is a wasteful number, since it uses less digits than its factorization.

99983587745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85304.

The product of its digits is 685843200, while the sum is 74.

The spelling of 99983587745 in words is "ninety-nine billion, nine hundred eighty-three million, five hundred eighty-seven thousand, seven hundred forty-five".