899081392961 has 4 divisors (see below), whose sum is σ = 899188600752. Its totient is φ = 898974185172.

The previous prime is 899081392939. The next prime is 899081392967. The reversal of 899081392961 is 169293180998.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 899081392961 - 2¹⁰ = 899081391937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (899081392967) 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 3 ways as a sum of consecutive naturals, for example, 53591315 + ... + 53608088.

It is an arithmetic number, because the mean of its divisors is an integer number (224797150188).

Almost surely, 2^899081392961 is an apocalyptic number.

It is an amenable number.

899081392961 is a deficient number, since it is larger than the sum of its proper divisors (107207791).

899081392961 is a wasteful number, since it uses less digits than its factorization.

899081392961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107207790.

The product of its (nonzero) digits is 15116544, while the sum is 65.

The spelling of 899081392961 in words is "eight hundred ninety-nine billion, eighty-one million, three hundred ninety-two thousand, nine hundred sixty-one".