844269557922 has 90 divisors (see below), whose sum is σ = 2200866143553. Its totient is φ = 241196483808.

The previous prime is 844269557903. The next prime is 844269557951. The reversal of 844269557922 is 229755962448.

It can be written as a sum of positive squares in 2 ways, for example, as 837592870401 + 6676687521 = 915201^2 + 81711^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=649719.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 844269557922.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 81859438 + ... + 81869750.

Almost surely, 2^844269557922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 844269557922

844269557922 is an abundant number, since it is smaller than the sum of its proper divisors (1356596585631).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

844269557922 is an frugal number, since it uses more digits than its factorization.

844269557922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20654 (or 10325 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 63.

The spelling of 844269557922 in words is "eight hundred forty-four billion, two hundred sixty-nine million, five hundred fifty-seven thousand, nine hundred twenty-two".