99311328769 has 9 divisors (see below), whose sum is σ = 100021301121. Its totient is φ = 98606367300.

The previous prime is 99311328691. The next prime is 99311328839. The reversal of 99311328769 is 96782311399.

The square root of 99311328769 is 315137.

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

It is not a de Polignac number, because 99311328769 - 2¹⁷ = 99311197697 is a prime.

It is a super-2 number, since 2×99311328769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99311322769) 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 8 ways as a sum of consecutive naturals, for example, 47584644 + ... + 47586730.

Almost surely, 2^99311328769 is an apocalyptic number.

99311328769 is the 315137-th square number.

99311328769 is the 157569-th centered octagonal number.

It is an amenable number.

99311328769 is a deficient number, since it is larger than the sum of its proper divisors (709972352).

99311328769 is an frugal number, since it uses more digits than its factorization.

99311328769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476 (or 2238 counting only the distinct ones).

The product of its digits is 4408992, while the sum is 58.

The spelling of 99311328769 in words is "ninety-nine billion, three hundred eleven million, three hundred twenty-eight thousand, seven hundred sixty-nine".