99867544576899 has 16 divisors (see below), whose sum is σ = 149947750216704. Its totient is φ = 58573339927200.

The previous prime is 99867544576889. The next prime is 99867544576907.

99867544576899 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99867544576899 - 2⁷ = 99867544576771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99867544576819) 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, 48811115584 + ... + 48811117629.

It is an arithmetic number, because the mean of its divisors is an integer number (9371734388544).

Almost surely, 2^{99867544576899} is an apocalyptic number.

99867544576899 is a deficient number, since it is larger than the sum of its proper divisors (50080205639805).

99867544576899 is a wasteful number, since it uses less digits than its factorization.

99867544576899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97622233258.

The product of its digits is 296284262400, while the sum is 96.

The spelling of 99867544576899 in words is "ninety-nine trillion, eight hundred sixty-seven billion, five hundred forty-four million, five hundred seventy-six thousand, eight hundred ninety-nine".