27356954893 has 4 divisors (see below), whose sum is σ = 27357321760. Its totient is φ = 27356588028.

The previous prime is 27356954887. The next prime is 27356954921. The reversal of 27356954893 is 39845965372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 27356954893 - 2⁹ = 27356954381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27356954393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27255 + ... + 235492.

It is an arithmetic number, because the mean of its divisors is an integer number (6839330440).

Almost surely, 2^27356954893 is an apocalyptic number.

It is an amenable number.

27356954893 is a deficient number, since it is larger than the sum of its proper divisors (366867).

27356954893 is a wasteful number, since it uses less digits than its factorization.

27356954893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366866.

The product of its digits is 48988800, while the sum is 61.

The spelling of 27356954893 in words is "twenty-seven billion, three hundred fifty-six million, nine hundred fifty-four thousand, eight hundred ninety-three".