476978389585 has 8 divisors (see below), whose sum is σ = 572378815656. Its totient is φ = 381579546240.

The previous prime is 476978389571. The next prime is 476978389603. The reversal of 476978389585 is 585983879674.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16719265809 + 460259123776 = 129303^2 + 678424^2 .

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

It is not a de Polignac number, because 476978389585 - 2¹⁹ = 476977865297 is a prime.

It is a super-2 number, since 2×476978389585² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420307 + ... + 1063303.

It is an arithmetic number, because the mean of its divisors is an integer number (71547351957).

Almost surely, 2^476978389585 is an apocalyptic number.

It is an amenable number.

476978389585 is a deficient number, since it is larger than the sum of its proper divisors (95400426071).

476978389585 is a wasteful number, since it uses less digits than its factorization.

476978389585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791363.

The product of its digits is 3657830400, while the sum is 79.

The spelling of 476978389585 in words is "four hundred seventy-six billion, nine hundred seventy-eight million, three hundred eighty-nine thousand, five hundred eighty-five".