27825022644 has 24 divisors (see below), whose sum is σ = 68342161440. Its totient is φ = 8786849184.

The previous prime is 27825022619. The next prime is 27825022651. The reversal of 27825022644 is 44622052872.

It is a super-2 number, since 2×27825022644² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27825022596 and 27825022605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61019559 + ... + 61020014.

It is an arithmetic number, because the mean of its divisors is an integer number (2847590060).

Almost surely, 2^27825022644 is an apocalyptic number.

It is an amenable number.

27825022644 is an abundant number, since it is smaller than the sum of its proper divisors (40517138796).

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

27825022644 is a wasteful number, since it uses less digits than its factorization.

27825022644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122039599 (or 122039597 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 42.

The spelling of 27825022644 in words is "twenty-seven billion, eight hundred twenty-five million, twenty-two thousand, six hundred forty-four".