27741027747 has 4 divisors (see below), whose sum is σ = 36988037000. Its totient is φ = 18494018496.

The previous prime is 27741027733. The next prime is 27741027757. The reversal of 27741027747 is 74772014772.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 27741027747 - 2⁶ = 27741027683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27741027696 and 27741027705.

It is not an unprimeable number, because it can be changed into a prime (27741027757) 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 3 ways as a sum of consecutive naturals, for example, 4623504622 + ... + 4623504627.

It is an arithmetic number, because the mean of its divisors is an integer number (9247009250).

Almost surely, 2^27741027747 is an apocalyptic number.

27741027747 is a deficient number, since it is larger than the sum of its proper divisors (9247009253).

27741027747 is an equidigital number, since it uses as much as digits as its factorization.

27741027747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9247009252.

The product of its (nonzero) digits is 1075648, while the sum is 48.

The spelling of 27741027747 in words is "twenty-seven billion, seven hundred forty-one million, twenty-seven thousand, seven hundred forty-seven".