27831319085 has 8 divisors (see below), whose sum is σ = 33498483936. Its totient is φ = 22197787920.

The previous prime is 27831319057. The next prime is 27831319093. The reversal of 27831319085 is 58091313872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27831319085 - 2¹² = 27831314989 is a prime.

It is a super-2 number, since 2×27831319085² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 8406599 + ... + 8409908.

It is an arithmetic number, because the mean of its divisors is an integer number (4187310492).

Almost surely, 2^27831319085 is an apocalyptic number.

It is an amenable number.

27831319085 is a deficient number, since it is larger than the sum of its proper divisors (5667164851).

27831319085 is a wasteful number, since it uses less digits than its factorization.

27831319085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16816843.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 27831319085 in words is "twenty-seven billion, eight hundred thirty-one million, three hundred nineteen thousand, eighty-five".