27133256945 has 8 divisors (see below), whose sum is σ = 34273587840. Its totient is φ = 20564152560.

The previous prime is 27133256903. The next prime is 27133256947. The reversal of 27133256945 is 54965233172.

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

It is a de Polignac number, because none of the positive numbers 2^k-27133256945 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27133256945.

It is not an unprimeable number, because it can be changed into a prime (27133256947) 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, 142806521 + ... + 142806710.

It is an arithmetic number, because the mean of its divisors is an integer number (4284198480).

Almost surely, 2^27133256945 is an apocalyptic number.

It is an amenable number.

27133256945 is a deficient number, since it is larger than the sum of its proper divisors (7140330895).

27133256945 is a wasteful number, since it uses less digits than its factorization.

27133256945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285613255.

The product of its digits is 1360800, while the sum is 47.

The spelling of 27133256945 in words is "twenty-seven billion, one hundred thirty-three million, two hundred fifty-six thousand, nine hundred forty-five".