478938095899 has 2 divisors, whose sum is σ = 478938095900. Its totient is φ = 478938095898.

The previous prime is 478938095849. The next prime is 478938095917. The reversal of 478938095899 is 998590839874.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478938095899 is a prime.

It is not a weakly prime, because it can be changed into another prime (478938095849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239469047949 + 239469047950.

It is an arithmetic number, because the mean of its divisors is an integer number (239469047950).

Almost surely, 2^478938095899 is an apocalyptic number.

478938095899 is a deficient number, since it is larger than the sum of its proper divisors (1).

478938095899 is an equidigital number, since it uses as much as digits as its factorization.

478938095899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1410877440, while the sum is 79.

The spelling of 478938095899 in words is "four hundred seventy-eight billion, nine hundred thirty-eight million, ninety-five thousand, eight hundred ninety-nine".