27705305479 has 2 divisors, whose sum is σ = 27705305480. Its totient is φ = 27705305478.

The previous prime is 27705305471. The next prime is 27705305483. The reversal of 27705305479 is 97450350772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27705305479 - 2³ = 27705305471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27705305471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13852652739 + 13852652740.

It is an arithmetic number, because the mean of its divisors is an integer number (13852652740).

Almost surely, 2^27705305479 is an apocalyptic number.

27705305479 is a deficient number, since it is larger than the sum of its proper divisors (1).

27705305479 is an equidigital number, since it uses as much as digits as its factorization.

27705305479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1852200, while the sum is 49.

The spelling of 27705305479 in words is "twenty-seven billion, seven hundred five million, three hundred five thousand, four hundred seventy-nine".