2162867945 has 32 divisors (see below), whose sum is σ = 3126470400. Its totient is φ = 1403191296.

The previous prime is 2162867929. The next prime is 2162867947. The reversal of 2162867945 is 5497682612.

It is a cyclic number.

It is not a de Polignac number, because 2162867945 - 2⁴ = 2162867929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2162867893 and 2162867902.

It is not an unprimeable number, because it can be changed into a prime (2162867947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648041 + ... + 651369.

It is an arithmetic number, because the mean of its divisors is an integer number (97702200).

Almost surely, 2^2162867945 is an apocalyptic number.

It is an amenable number.

2162867945 is a deficient number, since it is larger than the sum of its proper divisors (963602455).

2162867945 is a wasteful number, since it uses less digits than its factorization.

2162867945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337.

The product of its digits is 1451520, while the sum is 50.

The square root of 2162867945 is about 46506.6440952258. The cubic root of 2162867945 is about 1293.2326721278.

The spelling of 2162867945 in words is "two billion, one hundred sixty-two million, eight hundred sixty-seven thousand, nine hundred forty-five".