99277296889 has 3 divisors (see below), whose sum is σ = 99277611973. Its totient is φ = 99276981806.

The previous prime is 99277296869. The next prime is 99277296907. The reversal of 99277296889 is 98869277299.

The square root of 99277296889 is 315083.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98869277299 = 13 ⋅7605329023.

It is not a de Polignac number, because 99277296889 - 2¹⁷ = 99277165817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99277296869) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 157542 + ... + 472624.

Almost surely, 2^99277296889 is an apocalyptic number.

99277296889 is the 315083-rd square number.

99277296889 is the 157542-nd centered octagonal number.

It is an amenable number.

99277296889 is a deficient number, since it is larger than the sum of its proper divisors (315084).

99277296889 is an frugal number, since it uses more digits than its factorization.

99277296889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630166 (or 315083 counting only the distinct ones).

The product of its digits is 493807104, while the sum is 76.

The spelling of 99277296889 in words is "ninety-nine billion, two hundred seventy-seven million, two hundred ninety-six thousand, eight hundred eighty-nine".