27440757405 has 48 divisors (see below), whose sum is σ = 48181101696. Its totient is φ = 14445513600.

The previous prime is 27440757359. The next prime is 27440757433. The reversal of 27440757405 is 50475704472.

27440757405 is a `hidden beast` number, since 2 + 74 + 4 + 0 + 7 + 574 + 0 + 5 = 666.

It is not a de Polignac number, because 27440757405 - 2¹⁶ = 27440691869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5125480 + ... + 5130830.

It is an arithmetic number, because the mean of its divisors is an integer number (1003772952).

Almost surely, 2^27440757405 is an apocalyptic number.

It is an amenable number.

27440757405 is a deficient number, since it is larger than the sum of its proper divisors (20740344291).

27440757405 is a wasteful number, since it uses less digits than its factorization.

27440757405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6818 (or 6815 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 45.

The spelling of 27440757405 in words is "twenty-seven billion, four hundred forty million, seven hundred fifty-seven thousand, four hundred five".