479534144640 has 256 divisors, whose sum is σ = 1596020112000. Its totient is φ = 122310852608.

The previous prime is 479534144623. The next prime is 479534144701. The reversal of 479534144640 is 46441435974.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5917516 + ... + 5998004.

Almost surely, 2^479534144640 is an apocalyptic number.

479534144640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 479534144640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (798010056000).

479534144640 is an abundant number, since it is smaller than the sum of its proper divisors (1116485967360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

479534144640 is a wasteful number, since it uses less digits than its factorization.

479534144640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80647 (or 80635 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 479534144640 in words is "four hundred seventy-nine billion, five hundred thirty-four million, one hundred forty-four thousand, six hundred forty".