4531423619520 has 2688 divisors, whose sum is σ = 20877955338240. Its totient is φ = 877445775360.

The previous prime is 4531423619479. The next prime is 4531423619581. The reversal of 4531423619520 is 259163241354.

4531423619520 is a `hidden beast` number, since 4 + 5 + 3 + 1 + 4 + 2 + 3 + 619 + 5 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 383 ways as a sum of consecutive naturals, for example, 9829552090 + ... + 9829552550.

It is an arithmetic number, because the mean of its divisors is an integer number (7767096480).

Almost surely, 2^{4531423619520} is an apocalyptic number.

4531423619520 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 4531423619520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10438977669120).

4531423619520 is an abundant number, since it is smaller than the sum of its proper divisors (16346531718720).

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

4531423619520 is a wasteful number, since it uses less digits than its factorization.

4531423619520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 4531423619520 in words is "four trillion, five hundred thirty-one billion, four hundred twenty-three million, six hundred nineteen thousand, five hundred twenty".