425453543824 has 45 divisors (see below), whose sum is σ = 853872954753. Its totient is φ = 205354838976.

The previous prime is 425453543797. The next prime is 425453543849. The reversal of 425453543824 is 428345354524.

The square root of 425453543824 is 652268.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 223097518224 + 202356025600 = 472332^2 + 449840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 75660277 + ... + 75665899.

Almost surely, 2^425453543824 is an apocalyptic number.

425453543824 is the 652268-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425453543824

425453543824 is an abundant number, since it is smaller than the sum of its proper divisors (428419410929).

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

425453543824 is an frugal number, since it uses more digits than its factorization.

425453543824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11312 (or 5654 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 49.

Multiplying 425453543824 by its sum of digits (49), we get a square (20847223647376 = 4565876²).

The spelling of 425453543824 in words is "four hundred twenty-five billion, four hundred fifty-three million, five hundred forty-three thousand, eight hundred twenty-four".