2443628630521 has 9 divisors (see below), whose sum is σ = 2646081410031. Its totient is φ = 2255638438872.

The previous prime is 2443628630497. The next prime is 2443628630539. The reversal of 2443628630521 is 1250368263442.

The square root of 2443628630521 is 1563211.

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., 361483525225 + 2082145105296 = 601235^2 + 1442964^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2443628630521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2443628630321) 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, 20261620 + ... + 20381866.

It is an arithmetic number, because the mean of its divisors is an integer number (294009045559).

Almost surely, 2^{2443628630521} is an apocalyptic number.

2443628630521 is the 1563211-st square number.

2443628630521 is the 781606-th centered octagonal number.

It is an amenable number.

2443628630521 is a deficient number, since it is larger than the sum of its proper divisors (202452779510).

2443628630521 is an frugal number, since it uses more digits than its factorization.

2443628630521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240520 (or 120260 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 2443628630521 in words is "two trillion, four hundred forty-three billion, six hundred twenty-eight million, six hundred thirty thousand, five hundred twenty-one".