27601745646 has 16 divisors (see below), whose sum is σ = 55214374608. Its totient is φ = 9198768000.

The previous prime is 27601745627. The next prime is 27601745653. The reversal of 27601745646 is 64654710672.

It is a junction number, because it is equal to n+sod(n) for n = 27601745595 and 27601745604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420315 + ... + 481526.

It is an arithmetic number, because the mean of its divisors is an integer number (3450898413).

Almost surely, 2^27601745646 is an apocalyptic number.

27601745646 is an abundant number, since it is smaller than the sum of its proper divisors (27612628962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27601745646 is a wasteful number, since it uses less digits than its factorization.

27601745646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906947.

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 27601745646 in words is "twenty-seven billion, six hundred one million, seven hundred forty-five thousand, six hundred forty-six".