813082822472 has 108 divisors (see below), whose sum is σ = 1622845918995. Its totient is φ = 381880086368.

The previous prime is 813082822373. The next prime is 813082822529. The reversal of 813082822472 is 274228280318.

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.

813082822472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 406541411236 + 406541411236 = 637606^2 + 637606^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=637606.

It is a super-2 number, since 2×813082822472² (a number of 25 digits) contains 22 as substring.

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, 4868759333 + ... + 4868759499.

Almost surely, 2^813082822472 is an apocalyptic number.

It is an amenable number.

813082822472 is a deficient number, since it is larger than the sum of its proper divisors (809763096523).

813082822472 is an equidigital number, since it uses as much as digits as its factorization.

813082822472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 47.

The spelling of 813082822472 in words is "eight hundred thirteen billion, eighty-two million, eight hundred twenty-two thousand, four hundred seventy-two".