478571555636 has 12 divisors (see below), whose sum is σ = 837505915680. Its totient is φ = 239284151160.

The previous prime is 478571555603. The next prime is 478571555639. The reversal of 478571555636 is 636555175874.

It is a super-2 number, since 2×478571555636² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478571555639) 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, 460985 + ... + 1081503.

It is an arithmetic number, because the mean of its divisors is an integer number (69792159640).

Almost surely, 2^478571555636 is an apocalyptic number.

It is an amenable number.

478571555636 is a deficient number, since it is larger than the sum of its proper divisors (358934360044).

478571555636 is a wasteful number, since it uses less digits than its factorization.

478571555636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813334 (or 813332 counting only the distinct ones).

The product of its digits is 105840000, while the sum is 62.

The spelling of 478571555636 in words is "four hundred seventy-eight billion, five hundred seventy-one million, five hundred fifty-five thousand, six hundred thirty-six".