4638554493 has 32 divisors (see below), whose sum is σ = 6560611200. Its totient is φ = 2907058176.

The previous prime is 4638554423. The next prime is 4638554527. The reversal of 4638554493 is 3944558364.

It is not a de Polignac number, because 4638554493 - 2⁸ = 4638554237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638554423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5412121 + ... + 5412977.

It is an arithmetic number, because the mean of its divisors is an integer number (205019100).

Almost surely, 2^4638554493 is an apocalyptic number.

It is an amenable number.

4638554493 is a deficient number, since it is larger than the sum of its proper divisors (1922056707).

4638554493 is a wasteful number, since it uses less digits than its factorization.

4638554493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501.

The product of its digits is 6220800, while the sum is 51.

The square root of 4638554493 is about 68106.9342504858. The cubic root of 4638554493 is about 1667.7369628037.

The spelling of 4638554493 in words is "four billion, six hundred thirty-eight million, five hundred fifty-four thousand, four hundred ninety-three".