27775240881 has 8 divisors (see below), whose sum is σ = 37136813760. Its totient is φ = 18465247632.

The previous prime is 27775240873. The next prime is 27775240891. The reversal of 27775240881 is 18804257772.

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

It is not a de Polignac number, because 27775240881 - 2³ = 27775240873 is a prime.

It is a super-2 number, since 2×27775240881² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27775240891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12893650 + ... + 12895803.

It is an arithmetic number, because the mean of its divisors is an integer number (4642101720).

Almost surely, 2^27775240881 is an apocalyptic number.

It is an amenable number.

27775240881 is a deficient number, since it is larger than the sum of its proper divisors (9361572879).

27775240881 is a wasteful number, since it uses less digits than its factorization.

27775240881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25789815.

The product of its (nonzero) digits is 1756160, while the sum is 51.

The spelling of 27775240881 in words is "twenty-seven billion, seven hundred seventy-five million, two hundred forty thousand, eight hundred eighty-one".