9999000719 has 8 divisors (see below), whose sum is σ = 10056737280. Its totient is φ = 9941362200.

The previous prime is 9999000709. The next prime is 9999000761. The reversal of 9999000719 is 9170009999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9999000719 is a prime.

It is a super-2 number, since 2×9999000719² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999000709) 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 7 ways as a sum of consecutive naturals, for example, 185192 + ... + 233010.

It is an arithmetic number, because the mean of its divisors is an integer number (1257092160).

Almost surely, 2^9999000719 is an apocalyptic number.

9999000719 is a deficient number, since it is larger than the sum of its proper divisors (57736561).

9999000719 is a wasteful number, since it uses less digits than its factorization.

9999000719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49021.

The product of its (nonzero) digits is 413343, while the sum is 53.

The square root of 9999000719 is about 99995.0034701734. The cubic root of 9999000719 is about 2154.3629247863.

The spelling of 9999000719 in words is "nine billion, nine hundred ninety-nine million, seven hundred nineteen", and thus it is an aban number.