27740450771 has 8 divisors (see below), whose sum is σ = 30276657264. Its totient is φ = 25206635520.

The previous prime is 27740450761. The next prime is 27740450789. The reversal of 27740450771 is 17705404772.

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

It is not a de Polignac number, because 27740450771 - 2¹⁰ = 27740449747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27740450711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 573506 + ... + 619991.

It is an arithmetic number, because the mean of its divisors is an integer number (3784582158).

Almost surely, 2^27740450771 is an apocalyptic number.

27740450771 is a deficient number, since it is larger than the sum of its proper divisors (2536206493).

27740450771 is a wasteful number, since it uses less digits than its factorization.

27740450771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195621.

The product of its (nonzero) digits is 384160, while the sum is 44.

The spelling of 27740450771 in words is "twenty-seven billion, seven hundred forty million, four hundred fifty thousand, seven hundred seventy-one".