471778528776 has 64 divisors (see below), whose sum is σ = 1212892056000. Its totient is φ = 152811088128.

The previous prime is 471778528757. The next prime is 471778528783. The reversal of 471778528776 is 677825877174.

It is a self number, because there is not a number n which added to its sum of digits gives 471778528776.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342775 + ... + 1030073.

It is an arithmetic number, because the mean of its divisors is an integer number (18951438375).

Almost surely, 2^471778528776 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 471778528776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606446028000).

471778528776 is an abundant number, since it is smaller than the sum of its proper divisors (741113527224).

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

471778528776 is a wasteful number, since it uses less digits than its factorization.

471778528776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688118 (or 688114 counting only the distinct ones).

The product of its digits is 258155520, while the sum is 69.

The spelling of 471778528776 in words is "four hundred seventy-one billion, seven hundred seventy-eight million, five hundred twenty-eight thousand, seven hundred seventy-six".