27009776506 has 4 divisors (see below), whose sum is σ = 40514664762. Its totient is φ = 13504888252.

The previous prime is 27009776489. The next prime is 27009776533. The reversal of 27009776506 is 60567790072.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21657537225 + 5352239281 = 147165^2 + 73159^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 27009776506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752444125 + ... + 6752444128.

Almost surely, 2^27009776506 is an apocalyptic number.

27009776506 is a deficient number, since it is larger than the sum of its proper divisors (13504888256).

27009776506 is a wasteful number, since it uses less digits than its factorization.

27009776506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13504888255.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 27009776506 in words is "twenty-seven billion, nine million, seven hundred seventy-six thousand, five hundred six".