27456794871 has 16 divisors (see below), whose sum is σ = 40096280448. Its totient is φ = 16574180000.

The previous prime is 27456794867. The next prime is 27456794917. The reversal of 27456794871 is 17849765472.

It is a cyclic number.

It is not a de Polignac number, because 27456794871 - 2² = 27456794867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27456794861) 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 15 ways as a sum of consecutive naturals, for example, 1649136 + ... + 1665701.

It is an arithmetic number, because the mean of its divisors is an integer number (2506017528).

Almost surely, 2^27456794871 is an apocalyptic number.

27456794871 is a deficient number, since it is larger than the sum of its proper divisors (12639485577).

27456794871 is a wasteful number, since it uses less digits than its factorization.

27456794871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315102.

The product of its digits is 23708160, while the sum is 60.

The spelling of 27456794871 in words is "twenty-seven billion, four hundred fifty-six million, seven hundred ninety-four thousand, eight hundred seventy-one".