471563389440 has 2560 divisors, whose sum is σ = 2164661452800. Its totient is φ = 96745881600.

The previous prime is 471563389417. The next prime is 471563389477. The reversal of 471563389440 is 44983365174.

471563389440 is a `hidden beast` number, since 4 + 7 + 1 + 563 + 38 + 9 + 4 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (2560).

It is a super-2 number, since 2×471563389440² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 15211722225 + ... + 15211722255.

It is an arithmetic number, because the mean of its divisors is an integer number (845570880).

Almost surely, 2^471563389440 is an apocalyptic number.

471563389440 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 471563389440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082330726400).

471563389440 is an abundant number, since it is smaller than the sum of its proper divisors (1693098063360).

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

471563389440 is a wasteful number, since it uses less digits than its factorization.

471563389440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 471563389440 in words is "four hundred seventy-one billion, five hundred sixty-three million, three hundred eighty-nine thousand, four hundred forty".