473728731840 has 672 divisors, whose sum is σ = 2048174069760. Its totient is φ = 97822384128.

The previous prime is 473728731797. The next prime is 473728731893. The reversal of 473728731840 is 48137827374.

473728731840 is a `hidden beast` number, since 4 + 7 + 3 + 7 + 287 + 318 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×473728731840² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12298531 + ... + 12336989.

It is an arithmetic number, because the mean of its divisors is an integer number (3047878080).

Almost surely, 2^473728731840 is an apocalyptic number.

473728731840 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 473728731840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1024087034880).

473728731840 is an abundant number, since it is smaller than the sum of its proper divisors (1574445337920).

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

473728731840 is a wasteful number, since it uses less digits than its factorization.

473728731840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38549 (or 38536 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The spelling of 473728731840 in words is "four hundred seventy-three billion, seven hundred twenty-eight million, seven hundred thirty-one thousand, eight hundred forty".