27642646367 has 16 divisors (see below), whose sum is σ = 32477385024. Its totient is φ = 23033472000.

The previous prime is 27642646307. The next prime is 27642646399. The reversal of 27642646367 is 76364624672.

It is a happy number.

It is not a de Polignac number, because 27642646367 - 2⁶ = 27642646303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27642646307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90734 + ... + 252027.

It is an arithmetic number, because the mean of its divisors is an integer number (2029836564).

Almost surely, 2^27642646367 is an apocalyptic number.

27642646367 is a deficient number, since it is larger than the sum of its proper divisors (4834738657).

27642646367 is a wasteful number, since it uses less digits than its factorization.

27642646367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343090.

The product of its digits is 12192768, while the sum is 53.

The spelling of 27642646367 in words is "twenty-seven billion, six hundred forty-two million, six hundred forty-six thousand, three hundred sixty-seven".