78574463327 has 2 divisors, whose sum is σ = 78574463328. Its totient is φ = 78574463326.

The previous prime is 78574463321. The next prime is 78574463347. The reversal of 78574463327 is 72336447587.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (72336447587) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78574463327 - 2¹⁶ = 78574397791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78574463321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39287231663 + 39287231664.

It is an arithmetic number, because the mean of its divisors is an integer number (39287231664).

Almost surely, 2^78574463327 is an apocalyptic number.

78574463327 is a deficient number, since it is larger than the sum of its proper divisors (1).

78574463327 is an equidigital number, since it uses as much as digits as its factorization.

78574463327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23708160, while the sum is 56.

The spelling of 78574463327 in words is "seventy-eight billion, five hundred seventy-four million, four hundred sixty-three thousand, three hundred twenty-seven".