478665627533 has 4 divisors (see below), whose sum is σ = 478778179548. Its totient is φ = 478553075520.

The previous prime is 478665627481. The next prime is 478665627553. The reversal of 478665627533 is 335726566874.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175475534404 + 303190093129 = 418898^2 + 550627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478665627533 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 (478665627553) 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, 56269628 + ... + 56278133.

It is an arithmetic number, because the mean of its divisors is an integer number (119694544887).

Almost surely, 2^478665627533 is an apocalyptic number.

It is an amenable number.

478665627533 is a deficient number, since it is larger than the sum of its proper divisors (112552015).

478665627533 is a wasteful number, since it uses less digits than its factorization.

478665627533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112552014.

The product of its digits is 152409600, while the sum is 62.

The spelling of 478665627533 in words is "four hundred seventy-eight billion, six hundred sixty-five million, six hundred twenty-seven thousand, five hundred thirty-three".