27750250278005 has 8 divisors (see below), whose sum is σ = 33846206896824. Its totient is φ = 21836262513600.

The previous prime is 27750250277993. The next prime is 27750250278031. The reversal of 27750250278005 is 50087205205772.

It can be written as a sum of positive squares in 4 ways, for example, as 198910648036 + 27551339629969 = 445994^2 + 5248937^2 .

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

It is not a de Polignac number, because 27750250278005 - 2¹² = 27750250273909 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 45492213266 + ... + 45492213875.

It is an arithmetic number, because the mean of its divisors is an integer number (4230775862103).

Almost surely, 2^{27750250278005} is an apocalyptic number.

It is an amenable number.

27750250278005 is a deficient number, since it is larger than the sum of its proper divisors (6095956618819).

27750250278005 is an equidigital number, since it uses as much as digits as its factorization.

27750250278005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90984427207.

The product of its (nonzero) digits is 2744000, while the sum is 50.

The spelling of 27750250278005 in words is "twenty-seven trillion, seven hundred fifty billion, two hundred fifty million, two hundred seventy-eight thousand, five".