27747886747 has 8 divisors (see below), whose sum is σ = 32359052000. Its totient is φ = 23783902632.

The previous prime is 27747886741. The next prime is 27747886753. The reversal of 27747886747 is 74768874772.

It is an interprime number because it is at equal distance from previous prime (27747886741) and next prime (27747886753).

It is not a de Polignac number, because 27747886747 - 2²³ = 27739498139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27747886741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40448472 + ... + 40449157.

It is an arithmetic number, because the mean of its divisors is an integer number (4044881500).

Almost surely, 2^27747886747 is an apocalyptic number.

27747886747 is a deficient number, since it is larger than the sum of its proper divisors (4611165253).

27747886747 is an frugal number, since it uses more digits than its factorization.

27747886747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80897650 (or 80897636 counting only the distinct ones).

The product of its digits is 206524416, while the sum is 67.

The spelling of 27747886747 in words is "twenty-seven billion, seven hundred forty-seven million, eight hundred eighty-six thousand, seven hundred forty-seven".