99071243693 has 8 divisors (see below), whose sum is σ = 100561702080. Its totient is φ = 97581132000.

The previous prime is 99071243629. The next prime is 99071243861. The reversal of 99071243693 is 39634217099.

It is a happy number.

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 99071243693 - 2⁶ = 99071243629 is a prime.

It is a super-2 number, since 2×99071243693² (a number of 23 digits) contains 22 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 (99071243093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520928 + ... + 685206.

It is an arithmetic number, because the mean of its divisors is an integer number (12570212760).

Almost surely, 2^99071243693 is an apocalyptic number.

It is an amenable number.

99071243693 is a deficient number, since it is larger than the sum of its proper divisors (1490458387).

99071243693 is a wasteful number, since it uses less digits than its factorization.

99071243693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173347.

The product of its (nonzero) digits is 2204496, while the sum is 53.

The spelling of 99071243693 in words is "ninety-nine billion, seventy-one million, two hundred forty-three thousand, six hundred ninety-three".