890844872768 has 28 divisors (see below), whose sum is σ = 1768485436860. Its totient is φ = 445242243072.

The previous prime is 890844872767. The next prime is 890844872837. The reversal of 890844872768 is 867278448098.

It can be written as a sum of positive squares in 2 ways, for example, as 789624177664 + 101220695104 = 888608^2 + 318152^2 .

It is not an unprimeable number, because it can be changed into a prime (890844872767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2656013 + ... + 2972556.

Almost surely, 2^890844872768 is an apocalyptic number.

It is an amenable number.

890844872768 is a deficient number, since it is larger than the sum of its proper divisors (877640564092).

890844872768 is a wasteful number, since it uses less digits than its factorization.

890844872768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631054 (or 5631044 counting only the distinct ones).

The product of its (nonzero) digits is 346816512, while the sum is 71.

The spelling of 890844872768 in words is "eight hundred ninety billion, eight hundred forty-four million, eight hundred seventy-two thousand, seven hundred sixty-eight".