27772228073 has 8 divisors (see below), whose sum is σ = 28731782280. Its totient is φ = 26812800000.

The previous prime is 27772228063. The next prime is 27772228087. The reversal of 27772228073 is 37082227772.

It can be written as a sum of positive squares in 4 ways, for example, as 9787540624 + 17984687449 = 98932^2 + 134107^2 .

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 27772228073 - 2¹⁴ = 27772211689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27772228063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721823 + ... + 759323.

It is an arithmetic number, because the mean of its divisors is an integer number (3591472785).

Almost surely, 2^27772228073 is an apocalyptic number.

It is an amenable number.

27772228073 is a deficient number, since it is larger than the sum of its proper divisors (959554207).

27772228073 is a wasteful number, since it uses less digits than its factorization.

27772228073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63067.

The product of its (nonzero) digits is 921984, while the sum is 47.

The spelling of 27772228073 in words is "twenty-seven billion, seven hundred seventy-two million, two hundred twenty-eight thousand, seventy-three".