27695736656 has 40 divisors (see below), whose sum is σ = 61767504960. Its totient is φ = 11784201984.

The previous prime is 27695736617. The next prime is 27695736659. The reversal of 27695736656 is 65663759672.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27695736659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873941 + ... + 905076.

It is an arithmetic number, because the mean of its divisors is an integer number (1544187624).

Almost surely, 2^27695736656 is an apocalyptic number.

It is an amenable number.

27695736656 is an abundant number, since it is smaller than the sum of its proper divisors (34071768304).

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

27695736656 is a wasteful number, since it uses less digits than its factorization.

27695736656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779171 (or 1779165 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 62.

The spelling of 27695736656 in words is "twenty-seven billion, six hundred ninety-five million, seven hundred thirty-six thousand, six hundred fifty-six".