8899745719 has 4 divisors (see below), whose sum is σ = 8918968096. Its totient is φ = 8880523344.

The previous prime is 8899745693. The next prime is 8899745857. The reversal of 8899745719 is 9175479988.

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 8899745719 - 2¹³ = 8899737527 is a prime.

It is a super-2 number, since 2×8899745719² (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 (8899745119) 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, 9610494 + ... + 9611419.

It is an arithmetic number, because the mean of its divisors is an integer number (2229742024).

Almost surely, 2^8899745719 is an apocalyptic number.

8899745719 is a deficient number, since it is larger than the sum of its proper divisors (19222377).

8899745719 is a wasteful number, since it uses less digits than its factorization.

8899745719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19222376.

The product of its digits is 45722880, while the sum is 67.

The square root of 8899745719 is about 94338.4636243351. The cubic root of 8899745719 is about 2072.3313615601.

The spelling of 8899745719 in words is "eight billion, eight hundred ninety-nine million, seven hundred forty-five thousand, seven hundred nineteen".