2164823542 has 16 divisors (see below), whose sum is σ = 3711831552. Its totient is φ = 927605160.

The previous prime is 2164823509. The next prime is 2164823543. The reversal of 2164823542 is 2453284612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164823543) 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, 84817 + ... + 107347.

It is an arithmetic number, because the mean of its divisors is an integer number (231989472).

Almost surely, 2^2164823542 is an apocalyptic number.

2164823542 is a deficient number, since it is larger than the sum of its proper divisors (1547008010).

2164823542 is a wasteful number, since it uses less digits than its factorization.

2164823542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29403.

The product of its digits is 92160, while the sum is 37.

The square root of 2164823542 is about 46527.6642654668. The cubic root of 2164823542 is about 1293.6223214506.

The spelling of 2164823542 in words is "two billion, one hundred sixty-four million, eight hundred twenty-three thousand, five hundred forty-two".