471721485564 has 120 divisors (see below), whose sum is σ = 1435932435168. Its totient is φ = 132234560640.

The previous prime is 471721485553. The next prime is 471721485581. The reversal of 471721485564 is 465584127174.

It is a happy number.

471721485564 is a `hidden beast` number, since 4 + 7 + 1 + 72 + 1 + 4 + 8 + 5 + 564 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 471721485564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1841967 + ... + 2082374.

Almost surely, 2^471721485564 is an apocalyptic number.

It is an amenable number.

471721485564 is an abundant number, since it is smaller than the sum of its proper divisors (964210949604).

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

471721485564 is a wasteful number, since it uses less digits than its factorization.

471721485564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924417 (or 3924406 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 54.

The spelling of 471721485564 in words is "four hundred seventy-one billion, seven hundred twenty-one million, four hundred eighty-five thousand, five hundred sixty-four".