27012297947 has 8 divisors (see below), whose sum is σ = 27532389456. Its totient is φ = 26492592672.

The previous prime is 27012297881. The next prime is 27012297953. The reversal of 27012297947 is 74979221072.

It is a happy number.

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 27012297947 - 2¹⁶ = 27012232411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27012297895 and 27012297904.

It is not an unprimeable number, because it can be changed into a prime (27012297647) by changing a digit.

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, 46688 + ... + 237074.

It is an arithmetic number, because the mean of its divisors is an integer number (3441548682).

Almost surely, 2^27012297947 is an apocalyptic number.

27012297947 is a deficient number, since it is larger than the sum of its proper divisors (520091509).

27012297947 is a wasteful number, since it uses less digits than its factorization.

27012297947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193117.

The product of its (nonzero) digits is 889056, while the sum is 50.

The spelling of 27012297947 in words is "twenty-seven billion, twelve million, two hundred ninety-seven thousand, nine hundred forty-seven".