27634691361 has 8 divisors (see below), whose sum is σ = 36871140384. Its totient is φ = 18410684960.

The previous prime is 27634691353. The next prime is 27634691389. The reversal of 27634691361 is 16319643672.

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

It is a cyclic number.

It is not a de Polignac number, because 27634691361 - 2³ = 27634691353 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27634691361.

It is not an unprimeable number, because it can be changed into a prime (27634691761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3105471 + ... + 3114356.

It is an arithmetic number, because the mean of its divisors is an integer number (4608892548).

Almost surely, 2^27634691361 is an apocalyptic number.

It is an amenable number.

27634691361 is a deficient number, since it is larger than the sum of its proper divisors (9236449023).

27634691361 is a wasteful number, since it uses less digits than its factorization.

27634691361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6221311.

The product of its digits is 979776, while the sum is 48.

The spelling of 27634691361 in words is "twenty-seven billion, six hundred thirty-four million, six hundred ninety-one thousand, three hundred sixty-one".