27031087773 has 20 divisors (see below), whose sum is σ = 40411548540. Its totient is φ = 18006544512.

The previous prime is 27031087697. The next prime is 27031087781. The reversal of 27031087773 is 37778013072.

It can be written as a sum of positive squares in 2 ways, for example, as 14085654489 + 12945433284 = 118683^2 + 113778^2 .

It is not a de Polignac number, because 27031087773 - 2¹⁶ = 27031022237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27031087073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 27228 + ... + 234101.

It is an arithmetic number, because the mean of its divisors is an integer number (2020577427).

Almost surely, 2^27031087773 is an apocalyptic number.

It is an amenable number.

27031087773 is a deficient number, since it is larger than the sum of its proper divisors (13380460767).

27031087773 is a wasteful number, since it uses less digits than its factorization.

27031087773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262618 (or 262609 counting only the distinct ones).

The product of its (nonzero) digits is 345744, while the sum is 45.

The spelling of 27031087773 in words is "twenty-seven billion, thirty-one million, eighty-seven thousand, seven hundred seventy-three".