822259491272 has 108 divisors (see below), whose sum is σ = 1648935502305. Its totient is φ = 384367590464.

The previous prime is 822259491257. The next prime is 822259491281. The reversal of 822259491272 is 272194952228.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 779960987716 + 42298503556 = 883154^2 + 205666^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=641194.

It is a super-2 number, since 2×822259491272² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3126461813 + ... + 3126462075.

Almost surely, 2^822259491272 is an apocalyptic number.

It is an amenable number.

822259491272 is an abundant number, since it is smaller than the sum of its proper divisors (826676011033).

822259491272 is an equidigital number, since it uses as much as digits as its factorization.

822259491272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 341 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The spelling of 822259491272 in words is "eight hundred twenty-two billion, two hundred fifty-nine million, four hundred ninety-one thousand, two hundred seventy-two".