27206681697 has 48 divisors (see below), whose sum is σ = 45133845120. Its totient is φ = 15644192256.

The previous prime is 27206681659. The next prime is 27206681699. The reversal of 27206681697 is 79618660272.

It is not a de Polignac number, because 27206681697 - 2⁶ = 27206681633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27206681699) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 227268 + ... + 325674.

It is an arithmetic number, because the mean of its divisors is an integer number (940288440).

Almost surely, 2^27206681697 is an apocalyptic number.

It is an amenable number.

27206681697 is a deficient number, since it is larger than the sum of its proper divisors (17927163423).

27206681697 is a wasteful number, since it uses less digits than its factorization.

27206681697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98582 (or 98579 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 27206681697 in words is "twenty-seven billion, two hundred six million, six hundred eighty-one thousand, six hundred ninety-seven".