27307057709 has 4 divisors (see below), whose sum is σ = 27317849280. Its totient is φ = 27296266140.

The previous prime is 27307057681. The next prime is 27307057741. The reversal of 27307057709 is 90775070372.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27307057709 - 2¹⁶ = 27306992173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27307057909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5391989 + ... + 5397050.

It is an arithmetic number, because the mean of its divisors is an integer number (6829462320).

Almost surely, 2^27307057709 is an apocalyptic number.

It is an amenable number.

27307057709 is a deficient number, since it is larger than the sum of its proper divisors (10791571).

27307057709 is a wasteful number, since it uses less digits than its factorization.

27307057709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10791570.

The product of its (nonzero) digits is 648270, while the sum is 47.

The spelling of 27307057709 in words is "twenty-seven billion, three hundred seven million, fifty-seven thousand, seven hundred nine".