99858528017 has 8 divisors (see below), whose sum is σ = 100894627176. Its totient is φ = 98822564352.

The previous prime is 99858527983. The next prime is 99858528031. The reversal of 99858528017 is 71082585899.

It is a Cunningham number, because it is equal to 316004²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 77721856 + 99780806161 = 8816^2 + 315881^2 .

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 99858528017 - 2²⁰ = 99857479441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99858528097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2220083 + ... + 2264615.

It is an arithmetic number, because the mean of its divisors is an integer number (12611828397).

Almost surely, 2^99858528017 is an apocalyptic number.

99858528017 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

It is an amenable number.

99858528017 is a deficient number, since it is larger than the sum of its proper divisors (1036099159).

99858528017 is a wasteful number, since it uses less digits than its factorization.

99858528017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67747.

The product of its (nonzero) digits is 14515200, while the sum is 62.

The spelling of 99858528017 in words is "ninety-nine billion, eight hundred fifty-eight million, five hundred twenty-eight thousand, seventeen".