27755383705 has 32 divisors (see below), whose sum is σ = 38811861504. Its totient is φ = 18659137536.

The previous prime is 27755383703. The next prime is 27755383723. The reversal of 27755383705 is 50738355772.

It is a cyclic number.

It is not a de Polignac number, because 27755383705 - 2¹ = 27755383703 is a prime.

It is a super-2 number, since 2×27755383705² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27755383703) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2857417 + ... + 2867113.

It is an arithmetic number, because the mean of its divisors is an integer number (1212870672).

Almost surely, 2^27755383705 is an apocalyptic number.

It is an amenable number.

27755383705 is a deficient number, since it is larger than the sum of its proper divisors (11056477799).

27755383705 is a wasteful number, since it uses less digits than its factorization.

27755383705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11305.

The product of its (nonzero) digits is 6174000, while the sum is 52.

The spelling of 27755383705 in words is "twenty-seven billion, seven hundred fifty-five million, three hundred eighty-three thousand, seven hundred five".