27723254045 has 8 divisors (see below), whose sum is σ = 33895601496. Its totient is φ = 21760138816.

The previous prime is 27723254017. The next prime is 27723254063. The reversal of 27723254045 is 54045232772.

It can be written as a sum of positive squares in 4 ways, for example, as 11711135524 + 16012118521 = 108218^2 + 126539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27723254045 - 2⁶ = 27723253981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27723253993 and 27723254011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52307762 + ... + 52308291.

It is an arithmetic number, because the mean of its divisors is an integer number (4236950187).

Almost surely, 2^27723254045 is an apocalyptic number.

It is an amenable number.

27723254045 is a deficient number, since it is larger than the sum of its proper divisors (6172347451).

27723254045 is a wasteful number, since it uses less digits than its factorization.

27723254045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104616111.

The product of its (nonzero) digits is 470400, while the sum is 41.

The spelling of 27723254045 in words is "twenty-seven billion, seven hundred twenty-three million, two hundred fifty-four thousand, forty-five".