27771306258 has 16 divisors (see below), whose sum is σ = 55674547776. Its totient is φ = 9235112880.

The previous prime is 27771306247. The next prime is 27771306263. The reversal of 27771306258 is 85260317772.

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, 5494566 + ... + 5499617.

It is an arithmetic number, because the mean of its divisors is an integer number (3479659236).

Almost surely, 2^27771306258 is an apocalyptic number.

27771306258 is an abundant number, since it is smaller than the sum of its proper divisors (27903241518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27771306258 is a wasteful number, since it uses less digits than its factorization.

27771306258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10994609.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 27771306258 in words is "twenty-seven billion, seven hundred seventy-one million, three hundred six thousand, two hundred fifty-eight".