4564639498 has 8 divisors (see below), whose sum is σ = 7083061380. Its totient is φ = 2203619040.

The previous prime is 4564639493. The next prime is 4564639507. The reversal of 4564639498 is 8949364654.

It can be written as a sum of positive squares in 2 ways, for example, as 4489938049 + 74701449 = 67007^2 + 8643^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (58), and also a Moran number because the ratio is a prime number: 78700681 = 4564639498 / (4 + 5 + 6 + 4 + 6 + 3 + 9 + 4 + 9 + 8).

It is not an unprimeable number, because it can be changed into a prime (4564639493) 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 3 ways as a sum of consecutive naturals, for example, 39350283 + ... + 39350398.

Almost surely, 2^4564639498 is an apocalyptic number.

4564639498 is a deficient number, since it is larger than the sum of its proper divisors (2518421882).

4564639498 is a wasteful number, since it uses less digits than its factorization.

4564639498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78700712.

The product of its digits is 22394880, while the sum is 58.

The square root of 4564639498 is about 67562.1158490466. The cubic root of 4564639498 is about 1658.8310706617.

The spelling of 4564639498 in words is "four billion, five hundred sixty-four million, six hundred thirty-nine thousand, four hundred ninety-eight".