78475623071 has 2 divisors, whose sum is σ = 78475623072. Its totient is φ = 78475623070.

The previous prime is 78475623047. The next prime is 78475623097. The reversal of 78475623071 is 17032657487.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78475623071 - 2³⁰ = 77401881247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78475623001) 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, 39237811535 + 39237811536.

It is an arithmetic number, because the mean of its divisors is an integer number (39237811536).

Almost surely, 2^78475623071 is an apocalyptic number.

78475623071 is a deficient number, since it is larger than the sum of its proper divisors (1).

78475623071 is an equidigital number, since it uses as much as digits as its factorization.

78475623071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 78475623071 in words is "seventy-eight billion, four hundred seventy-five million, six hundred twenty-three thousand, seventy-one".