27674651449 has 3 divisors (see below), whose sum is σ = 27674817807. Its totient is φ = 27674485092.

The previous prime is 27674651443. The next prime is 27674651479. The reversal of 27674651449 is 94415647672.

It is a happy number.

The square root of 27674651449 is 166357.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 26671789225 + 1002862224 = 163315^2 + 31668^2 .

It is not a de Polignac number, because 27674651449 - 2⁷ = 27674651321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27674651449.

It is not an unprimeable number, because it can be changed into a prime (27674651443) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 83179 + ... + 249535.

It is an arithmetic number, because the mean of its divisors is an integer number (9224939269).

Almost surely, 2^27674651449 is an apocalyptic number.

27674651449 is the 166357-th square number.

27674651449 is the 83179-th centered octagonal number.

It is an amenable number.

27674651449 is a deficient number, since it is larger than the sum of its proper divisors (166358).

27674651449 is an frugal number, since it uses more digits than its factorization.

27674651449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332714 (or 166357 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 55.

The spelling of 27674651449 in words is "twenty-seven billion, six hundred seventy-four million, six hundred fifty-one thousand, four hundred forty-nine".