27307780509 has 16 divisors (see below), whose sum is σ = 37265467712. Its totient is φ = 17777829888.

The previous prime is 27307780499. The next prime is 27307780523. The reversal of 27307780509 is 90508770372.

It is not a de Polignac number, because 27307780509 - 2⁹ = 27307779997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27307780909) 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, 622899 + ... + 665295.

It is an arithmetic number, because the mean of its divisors is an integer number (2329091732).

Almost surely, 2^27307780509 is an apocalyptic number.

It is an amenable number.

27307780509 is a deficient number, since it is larger than the sum of its proper divisors (9957687203).

27307780509 is a wasteful number, since it uses less digits than its factorization.

27307780509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47436.

The product of its (nonzero) digits is 740880, while the sum is 48.

The spelling of 27307780509 in words is "twenty-seven billion, three hundred seven million, seven hundred eighty thousand, five hundred nine".