27056756858 has 4 divisors (see below), whose sum is σ = 40585135290. Its totient is φ = 13528378428.

The previous prime is 27056756849. The next prime is 27056756869. The reversal of 27056756858 is 85865765072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26775758689 + 280998169 = 163633^2 + 16763^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27056756797 and 27056756806.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6764189213 + ... + 6764189216.

Almost surely, 2^27056756858 is an apocalyptic number.

27056756858 is a deficient number, since it is larger than the sum of its proper divisors (13528378432).

27056756858 is a wasteful number, since it uses less digits than its factorization.

27056756858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13528378431.

The product of its (nonzero) digits is 28224000, while the sum is 59.

The spelling of 27056756858 in words is "twenty-seven billion, fifty-six million, seven hundred fifty-six thousand, eight hundred fifty-eight".