6598843378 has 4 divisors (see below), whose sum is σ = 9898265070. Its totient is φ = 3299421688.

The previous prime is 6598843351. The next prime is 6598843379. The reversal of 6598843378 is 8733488956.

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

It can be written as a sum of positive squares in only one way, i.e., 5235535449 + 1363307929 = 72357^2 + 36923^2 .

It is not an unprimeable number, because it can be changed into a prime (6598843379) 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 as a sum of consecutive naturals, namely, 1649710843 + ... + 1649710846.

Almost surely, 2^6598843378 is an apocalyptic number.

6598843378 is a deficient number, since it is larger than the sum of its proper divisors (3299421692).

6598843378 is a wasteful number, since it uses less digits than its factorization.

6598843378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3299421691.

The product of its digits is 34836480, while the sum is 61.

The square root of 6598843378 is about 81233.2652181359. The cubic root of 6598843378 is about 1875.6678749518.

The spelling of 6598843378 in words is "six billion, five hundred ninety-eight million, eight hundred forty-three thousand, three hundred seventy-eight".