27609148751 has 2 divisors, whose sum is σ = 27609148752. Its totient is φ = 27609148750.

The previous prime is 27609148621. The next prime is 27609148753. The reversal of 27609148751 is 15784190672.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27609148751 is a prime.

Together with 27609148753, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27609148751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27609148753) 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 as a sum of consecutive naturals, namely, 13804574375 + 13804574376.

It is an arithmetic number, because the mean of its divisors is an integer number (13804574376).

Almost surely, 2^27609148751 is an apocalyptic number.

27609148751 is a deficient number, since it is larger than the sum of its proper divisors (1).

27609148751 is an equidigital number, since it uses as much as digits as its factorization.

27609148751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 27609148751 in words is "twenty-seven billion, six hundred nine million, one hundred forty-eight thousand, seven hundred fifty-one".