4458534401640 has 256 divisors, whose sum is σ = 14644907827200. Its totient is φ = 1076912460800.

The previous prime is 4458534401611. The next prime is 4458534401647. The reversal of 4458534401640 is 461044358544.

It is a self number, because there is not a number n which added to its sum of digits gives 4458534401640.

It is not an unprimeable number, because it can be changed into a prime (4458534401647) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 477303370 + ... + 477312710.

It is an arithmetic number, because the mean of its divisors is an integer number (57206671200).

Almost surely, 2^{4458534401640} is an apocalyptic number.

4458534401640 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 4458534401640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7322453913600).

4458534401640 is an abundant number, since it is smaller than the sum of its proper divisors (10186373425560).

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

4458534401640 is a wasteful number, since it uses less digits than its factorization.

4458534401640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10648 (or 10644 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 48.

The spelling of 4458534401640 in words is "four trillion, four hundred fifty-eight billion, five hundred thirty-four million, four hundred one thousand, six hundred forty".