478476668405 has 8 divisors (see below), whose sum is σ = 577344224184. Its totient is φ = 380666520000.

The previous prime is 478476668401. The next prime is 478476668429. The reversal of 478476668405 is 504866674874.

It can be written as a sum of positive squares in 4 ways, for example, as 4805123761 + 473671544644 = 69319^2 + 688238^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 478476668405 - 2² = 478476668401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478476668401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264350846 + ... + 264352655.

It is an arithmetic number, because the mean of its divisors is an integer number (72168028023).

Almost surely, 2^478476668405 is an apocalyptic number.

It is an amenable number.

478476668405 is a deficient number, since it is larger than the sum of its proper divisors (98867555779).

478476668405 is a wasteful number, since it uses less digits than its factorization.

478476668405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528703687.

The product of its (nonzero) digits is 216760320, while the sum is 65.

The spelling of 478476668405 in words is "four hundred seventy-eight billion, four hundred seventy-six million, six hundred sixty-eight thousand, four hundred five".