478041446017 has 4 divisors (see below), whose sum is σ = 493462137856. Its totient is φ = 462620754180.

The previous prime is 478041446011. The next prime is 478041446021. The reversal of 478041446017 is 710644140874.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478041446017 is a prime.

It is a super-2 number, since 2×478041446017² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478041446011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7710345873 + ... + 7710345934.

It is an arithmetic number, because the mean of its divisors is an integer number (123365534464).

Almost surely, 2^478041446017 is an apocalyptic number.

It is an amenable number.

478041446017 is a deficient number, since it is larger than the sum of its proper divisors (15420691839).

478041446017 is a wasteful number, since it uses less digits than its factorization.

478041446017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15420691838.

The product of its (nonzero) digits is 602112, while the sum is 46.

The spelling of 478041446017 in words is "four hundred seventy-eight billion, forty-one million, four hundred forty-six thousand, seventeen".