27774433775 has 18 divisors (see below), whose sum is σ = 37855868736. Its totient is φ = 20199586000.

The previous prime is 27774433751. The next prime is 27774433777. The reversal of 27774433775 is 57733447772.

It is not a de Polignac number, because 27774433775 - 2⁶ = 27774433711 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 27774433775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27774433777) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4587791 + ... + 4593840.

Almost surely, 2^27774433775 is an apocalyptic number.

27774433775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27774433775 is a deficient number, since it is larger than the sum of its proper divisors (10081434961).

27774433775 is a wasteful number, since it uses less digits than its factorization.

27774433775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9181663 (or 9181647 counting only the distinct ones).

The product of its digits is 24202080, while the sum is 56.

The spelling of 27774433775 in words is "twenty-seven billion, seven hundred seventy-four million, four hundred thirty-three thousand, seven hundred seventy-five".