2133299778724 has 27 divisors (see below), whose sum is σ = 3756622461697. Its totient is φ = 1060020307664.

The previous prime is 2133299778721. The next prime is 2133299778733. The reversal of 2133299778724 is 4278779923312.

The square root of 2133299778724 is 1460582.

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., 1225913984100 + 907385794624 = 1107210^2 + 952568^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133299778721) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 487832202 + ... + 487836574.

Almost surely, 2^{2133299778724} is an apocalyptic number.

2133299778724 is the 1460582-nd square number.

It is an amenable number.

2133299778724 is a deficient number, since it is larger than the sum of its proper divisors (1623322682973).

2133299778724 is an frugal number, since it uses more digits than its factorization.

2133299778724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9084 (or 4542 counting only the distinct ones).

The product of its digits is 64012032, while the sum is 64.

Multiplying 2133299778724 by its sum of digits (64), we get a square (136531185838336 = 11684656²).

The spelling of 2133299778724 in words is "two trillion, one hundred thirty-three billion, two hundred ninety-nine million, seven hundred seventy-eight thousand, seven hundred twenty-four".