27685974267 has 18 divisors (see below), whose sum is σ = 46519971108. Its totient is φ = 15820556472.

The previous prime is 27685974157. The next prime is 27685974271. The reversal of 27685974267 is 76247958672.

It is not a de Polignac number, because 27685974267 - 2⁷ = 27685974139 is a prime.

It is a super-2 number, since 2×27685974267² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (27685972267) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 31389553 + ... + 31390434.

Almost surely, 2^27685974267 is an apocalyptic number.

27685974267 is a deficient number, since it is larger than the sum of its proper divisors (18833996841).

27685974267 is a wasteful number, since it uses less digits than its factorization.

27685974267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62780007 (or 62779997 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 63.

The spelling of 27685974267 in words is "twenty-seven billion, six hundred eighty-five million, nine hundred seventy-four thousand, two hundred sixty-seven".