27750577745 has 8 divisors (see below), whose sum is σ = 36328029120. Its totient is φ = 20182238320.

The previous prime is 27750577733. The next prime is 27750577781. The reversal of 27750577745 is 54777505772.

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

It is not a de Polignac number, because 27750577745 - 2¹² = 27750573649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252277925 + ... + 252278034.

It is an arithmetic number, because the mean of its divisors is an integer number (4541003640).

Almost surely, 2^27750577745 is an apocalyptic number.

It is an amenable number.

27750577745 is a deficient number, since it is larger than the sum of its proper divisors (8577451375).

27750577745 is a wasteful number, since it uses less digits than its factorization.

27750577745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504555975.

The product of its (nonzero) digits is 16807000, while the sum is 56.

The spelling of 27750577745 in words is "twenty-seven billion, seven hundred fifty million, five hundred seventy-seven thousand, seven hundred forty-five".