27331604636 has 24 divisors (see below), whose sum is σ = 54805954560. Its totient is φ = 11682956592.

The previous prime is 27331604617. The next prime is 27331604669. The reversal of 27331604636 is 63640613372.

It is a super-2 number, since 2×27331604636² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27331604593 and 27331604602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263596 + ... + 1285043.

It is an arithmetic number, because the mean of its divisors is an integer number (2283581440).

Almost surely, 2^27331604636 is an apocalyptic number.

It is an amenable number.

27331604636 is an abundant number, since it is smaller than the sum of its proper divisors (27474349924).

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

27331604636 is a wasteful number, since it uses less digits than its factorization.

27331604636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549033 (or 2549031 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 41.

The spelling of 27331604636 in words is "twenty-seven billion, three hundred thirty-one million, six hundred four thousand, six hundred thirty-six".