2043801907456 has 81 divisors (see below), whose sum is σ = 4109376075861. Its totient is φ = 1014501261312.

The previous prime is 2043801907453. The next prime is 2043801907463. The reversal of 2043801907456 is 6547091083402.

It is a happy number.

The square root of 2043801907456 is 1429616.

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., 1248993997056 + 794807910400 = 1117584^2 + 891520^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043801907453) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4551897120 + ... + 4551897568.

It is a 1-persistent number, because it is pandigital, but 2⋅2043801907456 = 4087603814912 is not.

Almost surely, 2^{2043801907456} is an apocalyptic number.

2043801907456 is the 1429616-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2043801907456

2043801907456 is an abundant number, since it is smaller than the sum of its proper divisors (2065574168405).

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

2043801907456 is an frugal number, since it uses more digits than its factorization.

2043801907456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312 (or 650 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

Multiplying 2043801907456 by its sum of digits (49), we get a square (100146293465344 = 10007312²).

The spelling of 2043801907456 in words is "two trillion, forty-three billion, eight hundred one million, nine hundred seven thousand, four hundred fifty-six".