78470775223 has 2 divisors, whose sum is σ = 78470775224. Its totient is φ = 78470775222.

The previous prime is 78470775203. The next prime is 78470775233. The reversal of 78470775223 is 32257707487.

It is a strong prime.

It is an emirp because it is prime and its reverse (32257707487) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78470775223 - 2¹³ = 78470767031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78470775203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39235387611 + 39235387612.

It is an arithmetic number, because the mean of its divisors is an integer number (39235387612).

Almost surely, 2^78470775223 is an apocalyptic number.

78470775223 is a deficient number, since it is larger than the sum of its proper divisors (1).

78470775223 is an equidigital number, since it uses as much as digits as its factorization.

78470775223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4609920, while the sum is 52.

The spelling of 78470775223 in words is "seventy-eight billion, four hundred seventy million, seven hundred seventy-five thousand, two hundred twenty-three".