475623216665879 has 2 divisors, whose sum is σ = 475623216665880. Its totient is φ = 475623216665878.

The previous prime is 475623216665621. The next prime is 475623216665881. The reversal of 475623216665879 is 978566612326574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 475623216665879 - 2³⁶ = 475554497189143 is a prime.

Together with 475623216665881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (475623216665479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237811608332939 + 237811608332940.

It is an arithmetic number, because the mean of its divisors is an integer number (237811608332940).

Almost surely, 2^{475623216665879} is an apocalyptic number.

475623216665879 is a deficient number, since it is larger than the sum of its proper divisors (1).

475623216665879 is an equidigital number, since it uses as much as digits as its factorization.

475623216665879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5486745600, while the sum is 77.

The spelling of 475623216665879 in words is "four hundred seventy-five trillion, six hundred twenty-three billion, two hundred sixteen million, six hundred sixty-five thousand, eight hundred seventy-nine".