27087404809 has 16 divisors (see below), whose sum is σ = 27534115840. Its totient is φ = 26645008320.

The previous prime is 27087404797. The next prime is 27087404833. The reversal of 27087404809 is 90840478072.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27087404809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27087404899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10231924 + ... + 10234570.

It is an arithmetic number, because the mean of its divisors is an integer number (1720882240).

Almost surely, 2^27087404809 is an apocalyptic number.

It is an amenable number.

27087404809 is a deficient number, since it is larger than the sum of its proper divisors (446711031).

27087404809 is a wasteful number, since it uses less digits than its factorization.

27087404809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 27087404809 in words is "twenty-seven billion, eighty-seven million, four hundred four thousand, eight hundred nine".