1122845672889 has 24 divisors (see below), whose sum is σ = 1652669895240. Its totient is φ = 734359921152.

The previous prime is 1122845672887. The next prime is 1122845672891. The reversal of 1122845672889 is 9882765482211.

1122845672889 is a `hidden beast` number, since 1 + 12 + 28 + 456 + 72 + 8 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (1122845672887) and next prime (1122845672891).

It can be written as a sum of positive squares in 4 ways, for example, as 80608862889 + 1042236810000 = 283917^2 + 1020900^2 .

It is not a de Polignac number, because 1122845672889 - 2¹ = 1122845672887 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1122845672887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4423777 + ... + 4670705.

It is an arithmetic number, because the mean of its divisors is an integer number (68861245635).

Almost surely, 2^{1122845672889} is an apocalyptic number.

It is an amenable number.

1122845672889 is a deficient number, since it is larger than the sum of its proper divisors (529824222351).

1122845672889 is a wasteful number, since it uses less digits than its factorization.

1122845672889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256521 (or 256518 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The spelling of 1122845672889 in words is "one trillion, one hundred twenty-two billion, eight hundred forty-five million, six hundred seventy-two thousand, eight hundred eighty-nine".