99171460837 has 4 divisors (see below), whose sum is σ = 99180562540. Its totient is φ = 99162359136.

The previous prime is 99171460781. The next prime is 99171460841. The reversal of 99171460837 is 73806417199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73806417199 = 457 ⋅161502007.

It can be written as a sum of positive squares in 2 ways, for example, as 19914572161 + 79256888676 = 141119^2 + 281526^2 .

It is a cyclic number.

It is not a de Polignac number, because 99171460837 - 2⁷ = 99171460709 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 (99171460877) 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 3 ways as a sum of consecutive naturals, for example, 4534488 + ... + 4556305.

It is an arithmetic number, because the mean of its divisors is an integer number (24795140635).

Almost surely, 2^99171460837 is an apocalyptic number.

It is an amenable number.

99171460837 is a deficient number, since it is larger than the sum of its proper divisors (9101703).

99171460837 is a wasteful number, since it uses less digits than its factorization.

99171460837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101702.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 99171460837 in words is "ninety-nine billion, one hundred seventy-one million, four hundred sixty thousand, eight hundred thirty-seven".