27768730607 has 4 divisors (see below), whose sum is σ = 27812738736. Its totient is φ = 27724722480.

The previous prime is 27768730543. The next prime is 27768730657. The reversal of 27768730607 is 70603786772.

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

It is a cyclic number.

It is not a de Polignac number, because 27768730607 - 2⁶ = 27768730543 is a prime.

It is a super-2 number, since 2×27768730607² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27768730657) 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, 22003118 + ... + 22004379.

It is an arithmetic number, because the mean of its divisors is an integer number (6953184684).

Almost surely, 2^27768730607 is an apocalyptic number.

27768730607 is a deficient number, since it is larger than the sum of its proper divisors (44008129).

27768730607 is an equidigital number, since it uses as much as digits as its factorization.

27768730607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44008128.

The product of its (nonzero) digits is 4148928, while the sum is 53.

The spelling of 27768730607 in words is "twenty-seven billion, seven hundred sixty-eight million, seven hundred thirty thousand, six hundred seven".