27945858473 has 8 divisors (see below), whose sum is σ = 30230500608. Its totient is φ = 25680496464.

The previous prime is 27945858469. The next prime is 27945858547. The reversal of 27945858473 is 37485854972.

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 27945858473 - 2² = 27945858469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27945858373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4817015 + ... + 4822812.

It is an arithmetic number, because the mean of its divisors is an integer number (3778812576).

Almost surely, 2^27945858473 is an apocalyptic number.

It is an amenable number.

27945858473 is a deficient number, since it is larger than the sum of its proper divisors (2284642135).

27945858473 is a wasteful number, since it uses less digits than its factorization.

27945858473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9640063.

The product of its digits is 67737600, while the sum is 62.

The spelling of 27945858473 in words is "twenty-seven billion, nine hundred forty-five million, eight hundred fifty-eight thousand, four hundred seventy-three".