78275368727 has 2 divisors, whose sum is σ = 78275368728. Its totient is φ = 78275368726.

The previous prime is 78275368681. The next prime is 78275368757. The reversal of 78275368727 is 72786357287.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78275368727 - 2¹⁶ = 78275303191 is a prime.

It is a super-2 number, since 2×78275368727² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78275368727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78275368757) 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, 39137684363 + 39137684364.

It is an arithmetic number, because the mean of its divisors is an integer number (39137684364).

Almost surely, 2^78275368727 is an apocalyptic number.

78275368727 is a deficient number, since it is larger than the sum of its proper divisors (1).

78275368727 is an equidigital number, since it uses as much as digits as its factorization.

78275368727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55319040, while the sum is 62.

The spelling of 78275368727 in words is "seventy-eight billion, two hundred seventy-five million, three hundred sixty-eight thousand, seven hundred twenty-seven".