27311385309 has 32 divisors (see below), whose sum is σ = 42535995264. Its totient is φ = 15432529920.

The previous prime is 27311385301. The next prime is 27311385319. The reversal of 27311385309 is 90358311372.

It is not a de Polignac number, because 27311385309 - 2³ = 27311385301 is a prime.

It is a super-2 number, since 2×27311385309² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27311385301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 475179 + ... + 529544.

It is an arithmetic number, because the mean of its divisors is an integer number (1329249852).

Almost surely, 2^27311385309 is an apocalyptic number.

It is an amenable number.

27311385309 is a deficient number, since it is larger than the sum of its proper divisors (15224609955).

27311385309 is a wasteful number, since it uses less digits than its factorization.

27311385309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004797.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 27311385309 in words is "twenty-seven billion, three hundred eleven million, three hundred eighty-five thousand, three hundred nine".