27087757745 has 16 divisors (see below), whose sum is σ = 32757130560. Its totient is φ = 21502497600.

The previous prime is 27087757729. The next prime is 27087757771. The reversal of 27087757745 is 54775778072.

It is a happy number.

It is not a de Polignac number, because 27087757745 - 2⁴ = 27087757729 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1387955 + ... + 1407335.

It is an arithmetic number, because the mean of its divisors is an integer number (2047320660).

Almost surely, 2^27087757745 is an apocalyptic number.

It is an amenable number.

27087757745 is a deficient number, since it is larger than the sum of its proper divisors (5669372815).

27087757745 is a wasteful number, since it uses less digits than its factorization.

27087757745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21536.

The product of its (nonzero) digits is 26891200, while the sum is 59.

The spelling of 27087757745 in words is "twenty-seven billion, eighty-seven million, seven hundred fifty-seven thousand, seven hundred forty-five".