478513503859 has 2 divisors, whose sum is σ = 478513503860. Its totient is φ = 478513503858.

The previous prime is 478513503841. The next prime is 478513503863. The reversal of 478513503859 is 958305315874.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478513503859 - 2¹⁵ = 478513471091 is a prime.

It is not a weakly prime, because it can be changed into another prime (478513503869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239256751929 + 239256751930.

It is an arithmetic number, because the mean of its divisors is an integer number (239256751930).

Almost surely, 2^478513503859 is an apocalyptic number.

478513503859 is a deficient number, since it is larger than the sum of its proper divisors (1).

478513503859 is an equidigital number, since it uses as much as digits as its factorization.

478513503859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144000, while the sum is 58.

The spelling of 478513503859 in words is "four hundred seventy-eight billion, five hundred thirteen million, five hundred three thousand, eight hundred fifty-nine".