27074398849 has 9 divisors (see below), whose sum is σ = 28763665347. Its totient is φ = 25479154464.

The previous prime is 27074398837. The next prime is 27074398853. The reversal of 27074398849 is 94889347072.

The square root of 27074398849 is 164543.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 21078684225 + 5995714624 = 145185^2 + 77432^2 .

It is not a de Polignac number, because 27074398849 - 2¹³ = 27074390657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27074398829) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2792392 + ... + 2802070.

Almost surely, 2^27074398849 is an apocalyptic number.

27074398849 is the 164543-rd square number.

27074398849 is the 82272-nd centered octagonal number.

It is an amenable number.

27074398849 is a deficient number, since it is larger than the sum of its proper divisors (1689266498).

27074398849 is an frugal number, since it uses more digits than its factorization.

27074398849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19392 (or 9696 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 61.

The spelling of 27074398849 in words is "twenty-seven billion, seventy-four million, three hundred ninety-eight thousand, eight hundred forty-nine".