842622674450 has 54 divisors (see below), whose sum is σ = 1605105807669. Its totient is φ = 329101673040.

The previous prime is 842622674429. The next prime is 842622674459. The reversal of 842622674450 is 54476226248.

It can be written as a sum of positive squares in 2 ways, for example, as 825770220961 + 16852453489 = 908719^2 + 129817^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=649085.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842622674459) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 279105041 + ... + 279108059.

Almost surely, 2^842622674450 is an apocalyptic number.

842622674450 is a deficient number, since it is larger than the sum of its proper divisors (762483133219).

842622674450 is an frugal number, since it uses more digits than its factorization.

842622674450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6136 (or 3069 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 50.

Multiplying 842622674450 by its sum of digits (50), we get a square (42131133722500 = 6490850²).

842622674450 divided by its sum of digits (50) gives a square (16852453489 = 129817²).

The spelling of 842622674450 in words is "eight hundred forty-two billion, six hundred twenty-two million, six hundred seventy-four thousand, four hundred fifty".