899796697999 has 4 divisors (see below), whose sum is σ = 899847918936. Its totient is φ = 899745477064.

The previous prime is 899796697973. The next prime is 899796698033. The reversal of 899796697999 is 999796697998.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-899796697999 is a prime.

It is a super-2 number, since 2×899796697999² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 899796697999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (899796697099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25584109 + ... + 25619254.

It is an arithmetic number, because the mean of its divisors is an integer number (224961979734).

Almost surely, 2^899796697999 is an apocalyptic number.

899796697999 is a deficient number, since it is larger than the sum of its proper divisors (51220937).

899796697999 is a wasteful number, since it uses less digits than its factorization.

899796697999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51220936.

The product of its digits is 67497258528, while the sum is 97.

Subtracting 899796697999 from its reverse (999796697998), we obtain a palindrome (99999999999).

The spelling of 899796697999 in words is "eight hundred ninety-nine billion, seven hundred ninety-six million, six hundred ninety-seven thousand, nine hundred ninety-nine".