27765263395 has 24 divisors (see below), whose sum is σ = 35522724384. Its totient is φ = 20794219776.

The previous prime is 27765263389. The next prime is 27765263431. The reversal of 27765263395 is 59336256772.

It is not a de Polignac number, because 27765263395 - 2¹⁷ = 27765132323 is a prime.

It is a Duffinian number.

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 23 ways as a sum of consecutive naturals, for example, 199387 + ... + 308683.

It is an arithmetic number, because the mean of its divisors is an integer number (1480113516).

Almost surely, 2^27765263395 is an apocalyptic number.

27765263395 is a deficient number, since it is larger than the sum of its proper divisors (7757460989).

27765263395 is a wasteful number, since it uses less digits than its factorization.

27765263395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109419 (or 109372 counting only the distinct ones).

The product of its digits is 14288400, while the sum is 55.

The spelling of 27765263395 in words is "twenty-seven billion, seven hundred sixty-five million, two hundred sixty-three thousand, three hundred ninety-five".