478163507 has 2 divisors, whose sum is σ = 478163508. Its totient is φ = 478163506.

The previous prime is 478163503. The next prime is 478163531. The reversal of 478163507 is 705361874.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 478163507 - 2² = 478163503 is a prime.

It is not a weakly prime, because it can be changed into another prime (478163503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239081753 + 239081754.

It is an arithmetic number, because the mean of its divisors is an integer number (239081754).

Almost surely, 2^478163507 is an apocalyptic number.

478163507 is a deficient number, since it is larger than the sum of its proper divisors (1).

478163507 is an equidigital number, since it uses as much as digits as its factorization.

478163507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 478163507 is about 21866.9501074110. The cubic root of 478163507 is about 781.9736927068.

The spelling of 478163507 in words is "four hundred seventy-eight million, one hundred sixty-three thousand, five hundred seven".