4537821619 has 4 divisors (see below), whose sum is σ = 4579453120. Its totient is φ = 4496190120.

The previous prime is 4537821581. The next prime is 4537821647. The reversal of 4537821619 is 9161287354.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4537821619 - 2⁹ = 4537821107 is a prime.

It is a super-2 number, since 2×4537821619² = 41183650091727562322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4537825619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20815587 + ... + 20815804.

It is an arithmetic number, because the mean of its divisors is an integer number (1144863280).

Almost surely, 2^4537821619 is an apocalyptic number.

4537821619 is a deficient number, since it is larger than the sum of its proper divisors (41631501).

4537821619 is a wasteful number, since it uses less digits than its factorization.

4537821619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41631500.

The product of its digits is 362880, while the sum is 46.

The square root of 4537821619 is about 67363.3551643622. The cubic root of 4537821619 is about 1655.5760682664.

The spelling of 4537821619 in words is "four billion, five hundred thirty-seven million, eight hundred twenty-one thousand, six hundred nineteen".