27735712997 has 4 divisors (see below), whose sum is σ = 27994925376. Its totient is φ = 27476500620.

The previous prime is 27735712969. The next prime is 27735713017. The reversal of 27735712997 is 79921753772.

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 27735712997 - 2²² = 27731518693 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 (27735712957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129606029 + ... + 129606242.

It is an arithmetic number, because the mean of its divisors is an integer number (6998731344).

Almost surely, 2^27735712997 is an apocalyptic number.

It is an amenable number.

27735712997 is a deficient number, since it is larger than the sum of its proper divisors (259212379).

27735712997 is a wasteful number, since it uses less digits than its factorization.

27735712997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259212378.

The product of its digits is 11668860, while the sum is 59.

The spelling of 27735712997 in words is "twenty-seven billion, seven hundred thirty-five million, seven hundred twelve thousand, nine hundred ninety-seven".