27071620564 has 12 divisors (see below), whose sum is σ = 47466271188. Its totient is φ = 13509828800.

The previous prime is 27071620399. The next prime is 27071620571. The reversal of 27071620564 is 46502617072.

It can be written as a sum of positive squares in 2 ways, for example, as 11722392900 + 15349227664 = 108270^2 + 123892^2 .

It is a super-2 number, since 2×27071620564² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6493027 + ... + 6497194.

It is an arithmetic number, because the mean of its divisors is an integer number (3955522599).

Almost surely, 2^27071620564 is an apocalyptic number.

It is an amenable number.

27071620564 is a deficient number, since it is larger than the sum of its proper divisors (20394650624).

27071620564 is a wasteful number, since it uses less digits than its factorization.

27071620564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12990746 (or 12990744 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 27071620564 in words is "twenty-seven billion, seventy-one million, six hundred twenty thousand, five hundred sixty-four".