478705377756 has 96 divisors (see below), whose sum is σ = 1190444290560. Its totient is φ = 149197676544.

The previous prime is 478705377737. The next prime is 478705377779. The reversal of 478705377756 is 657773507874.

It is a congruent number.

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, 88335615 + ... + 88341033.

It is an arithmetic number, because the mean of its divisors is an integer number (12400461360).

Almost surely, 2^478705377756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 478705377756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595222145280).

478705377756 is an abundant number, since it is smaller than the sum of its proper divisors (711738912804).

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

478705377756 is a wasteful number, since it uses less digits than its factorization.

478705377756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8203 (or 8201 counting only the distinct ones).

The product of its (nonzero) digits is 242020800, while the sum is 66.

The spelling of 478705377756 in words is "four hundred seventy-eight billion, seven hundred five million, three hundred seventy-seven thousand, seven hundred fifty-six".