4537821893 has 32 divisors (see below), whose sum is σ = 5273372160. Its totient is φ = 3866204160.

The previous prime is 4537821877. The next prime is 4537821923. The reversal of 4537821893 is 3981287354.

It is a cyclic number.

It is not a de Polignac number, because 4537821893 - 2⁴ = 4537821877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4537821853) 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, 1638596 + ... + 1641362.

It is an arithmetic number, because the mean of its divisors is an integer number (164792880).

Almost surely, 2^4537821893 is an apocalyptic number.

It is an amenable number.

4537821893 is a deficient number, since it is larger than the sum of its proper divisors (735550267).

4537821893 is a wasteful number, since it uses less digits than its factorization.

4537821893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957.

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

The square root of 4537821893 is about 67363.3571981088. The cubic root of 4537821893 is about 1655.5761015884.

The spelling of 4537821893 in words is "four billion, five hundred thirty-seven million, eight hundred twenty-one thousand, eight hundred ninety-three".