27757045646 has 32 divisors (see below), whose sum is σ = 46087018848. Its totient is φ = 12432061440.

The previous prime is 27757045607. The next prime is 27757045661. The reversal of 27757045646 is 64654075772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1786166 + ... + 1801638.

It is an arithmetic number, because the mean of its divisors is an integer number (1440219339).

Almost surely, 2^27757045646 is an apocalyptic number.

27757045646 is a deficient number, since it is larger than the sum of its proper divisors (18329973202).

27757045646 is a wasteful number, since it uses less digits than its factorization.

27757045646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16676.

The product of its (nonzero) digits is 9878400, while the sum is 53.

The spelling of 27757045646 in words is "twenty-seven billion, seven hundred fifty-seven million, forty-five thousand, six hundred forty-six".