27728574213 has 8 divisors (see below), whose sum is σ = 37014778528. Its totient is φ = 18464043024.

The previous prime is 27728574197. The next prime is 27728574227. The reversal of 27728574213 is 31247582772.

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

It is not a de Polignac number, because 27728574213 - 2⁴ = 27728574197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27728574253) 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, 5415295 + ... + 5420412.

It is an arithmetic number, because the mean of its divisors is an integer number (4626847316).

Almost surely, 2^27728574213 is an apocalyptic number.

It is an amenable number.

27728574213 is a deficient number, since it is larger than the sum of its proper divisors (9286204315).

27728574213 is a wasteful number, since it uses less digits than its factorization.

27728574213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10836563.

The product of its digits is 1317120, while the sum is 48.

The spelling of 27728574213 in words is "twenty-seven billion, seven hundred twenty-eight million, five hundred seventy-four thousand, two hundred thirteen".