478458477047 has 2 divisors, whose sum is σ = 478458477048. Its totient is φ = 478458477046.

The previous prime is 478458477037. The next prime is 478458477053. The reversal of 478458477047 is 740774854874.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 478458477047 - 2⁶ = 478458476983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (478458477037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239229238523 + 239229238524.

It is an arithmetic number, because the mean of its divisors is an integer number (239229238524).

Almost surely, 2^478458477047 is an apocalyptic number.

478458477047 is a deficient number, since it is larger than the sum of its proper divisors (1).

478458477047 is an equidigital number, since it uses as much as digits as its factorization.

478458477047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196689920, while the sum is 65.

The spelling of 478458477047 in words is "four hundred seventy-eight billion, four hundred fifty-eight million, four hundred seventy-seven thousand, forty-seven".