2162581748 has 24 divisors (see below), whose sum is σ = 4001598720. Its totient is φ = 1019779200.

The previous prime is 2162581741. The next prime is 2162581763. The reversal of 2162581748 is 8471852612.

It is a junction number, because it is equal to n+sod(n) for n = 2162581699 and 2162581708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162581741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46853 + ... + 80748.

It is an arithmetic number, because the mean of its divisors is an integer number (166733280).

Almost surely, 2^2162581748 is an apocalyptic number.

It is an amenable number.

2162581748 is a deficient number, since it is larger than the sum of its proper divisors (1839016972).

2162581748 is a wasteful number, since it uses less digits than its factorization.

2162581748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127847 (or 127845 counting only the distinct ones).

The product of its digits is 215040, while the sum is 44.

The square root of 2162581748 is about 46503.5670459805. The cubic root of 2162581748 is about 1293.1756281709.

The spelling of 2162581748 in words is "two billion, one hundred sixty-two million, five hundred eighty-one thousand, seven hundred forty-eight".