4638931557 has 8 divisors (see below), whose sum is σ = 6661029984. Its totient is φ = 2854727088.

The previous prime is 4638931519. The next prime is 4638931597. The reversal of 4638931557 is 7551398364.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4638931557 - 2¹¹ = 4638929509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638931597) 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, 59473443 + ... + 59473520.

It is an arithmetic number, because the mean of its divisors is an integer number (832628748).

Almost surely, 2^4638931557 is an apocalyptic number.

It is an amenable number.

4638931557 is a deficient number, since it is larger than the sum of its proper divisors (2022098427).

4638931557 is a wasteful number, since it uses less digits than its factorization.

4638931557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118946979.

The product of its digits is 2721600, while the sum is 51.

The square root of 4638931557 is about 68109.7023705140. The cubic root of 4638931557 is about 1667.7821512011.

The spelling of 4638931557 in words is "four billion, six hundred thirty-eight million, nine hundred thirty-one thousand, five hundred fifty-seven".