99449894499 has 4 divisors (see below), whose sum is σ = 132599859336. Its totient is φ = 66299929664.

The previous prime is 99449894491. The next prime is 99449894567.

99449894499 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99449894499 - 2³ = 99449894491 is a prime.

It is a super-2 number, since 2×99449894499² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99449894491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16574982414 + ... + 16574982419.

It is an arithmetic number, because the mean of its divisors is an integer number (33149964834).

Almost surely, 2^99449894499 is an apocalyptic number.

99449894499 is a deficient number, since it is larger than the sum of its proper divisors (33149964837).

99449894499 is a wasteful number, since it uses less digits than its factorization.

99449894499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33149964836.

The product of its digits is 1088391168, while the sum is 78.

The spelling of 99449894499 in words is "ninety-nine billion, four hundred forty-nine million, eight hundred ninety-four thousand, four hundred ninety-nine".