27750577705 has 8 divisors (see below), whose sum is σ = 33309162432. Its totient is φ = 22194816048.

The previous prime is 27750577703. The next prime is 27750577721. The reversal of 27750577705 is 50777505772.

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

It is a cyclic number.

It is not a de Polignac number, because 27750577705 - 2¹ = 27750577703 is a prime.

It is a super-2 number, since 2×27750577705² (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 (27750577703) 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, 684079 + ... + 723508.

It is an arithmetic number, because the mean of its divisors is an integer number (4163645304).

Almost surely, 2^27750577705 is an apocalyptic number.

It is an amenable number.

27750577705 is a deficient number, since it is larger than the sum of its proper divisors (5558584727).

27750577705 is a wasteful number, since it uses less digits than its factorization.

27750577705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411535.

The product of its (nonzero) digits is 4201750, while the sum is 52.

The spelling of 27750577705 in words is "twenty-seven billion, seven hundred fifty million, five hundred seventy-seven thousand, seven hundred five".