478680081 has 16 divisors (see below), whose sum is σ = 696765888. Its totient is φ = 289899200.

The previous prime is 478680073. The next prime is 478680109. The reversal of 478680081 is 180086874.

It is a cyclic number.

It is not a de Polignac number, because 478680081 - 2³ = 478680073 is a prime.

It is a super-2 number, since 2×478680081² = 458269239892333122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (478680011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49591 + ... + 58451.

It is an arithmetic number, because the mean of its divisors is an integer number (43547868).

Almost surely, 2^478680081 is an apocalyptic number.

It is an amenable number.

478680081 is a deficient number, since it is larger than the sum of its proper divisors (218085807).

478680081 is a wasteful number, since it uses less digits than its factorization.

478680081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10512.

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 478680081 is about 21878.7586713689. The cubic root of 478680081 is about 782.2551877005.

The spelling of 478680081 in words is "four hundred seventy-eight million, six hundred eighty thousand, eighty-one".