1022644870443 has 12 divisors (see below), whose sum is σ = 1688175659248. Its totient is φ = 584368497360.

The previous prime is 1022644870439. The next prime is 1022644870459. The reversal of 1022644870443 is 3440784462201.

1022644870443 is a `hidden beast` number, since 102 + 2 + 64 + 48 + 7 + 0 + 443 = 666.

It is not a de Polignac number, because 1022644870443 - 2² = 1022644870439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022644870543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8116229068 + ... + 8116229193.

Almost surely, 2^{1022644870443} is an apocalyptic number.

1022644870443 is a deficient number, since it is larger than the sum of its proper divisors (665530788805).

1022644870443 is a wasteful number, since it uses less digits than its factorization.

1022644870443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16232458274 (or 16232458271 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The spelling of 1022644870443 in words is "one trillion, twenty-two billion, six hundred forty-four million, eight hundred seventy thousand, four hundred forty-three".