78034514671 has 2 divisors, whose sum is σ = 78034514672. Its totient is φ = 78034514670.

The previous prime is 78034514581. The next prime is 78034514729. The reversal of 78034514671 is 17641543087.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78034514671 - 2¹¹ = 78034512623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78034514171) 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, 39017257335 + 39017257336.

It is an arithmetic number, because the mean of its divisors is an integer number (39017257336).

Almost surely, 2^78034514671 is an apocalyptic number.

78034514671 is a deficient number, since it is larger than the sum of its proper divisors (1).

78034514671 is an equidigital number, since it uses as much as digits as its factorization.

78034514671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 78034514671 in words is "seventy-eight billion, thirty-four million, five hundred fourteen thousand, six hundred seventy-one".