6198338915 has 4 divisors (see below), whose sum is σ = 7438006704. Its totient is φ = 4958671128.

The previous prime is 6198338911. The next prime is 6198338917. The reversal of 6198338915 is 5198338916.

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 6198338915 - 2² = 6198338911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6198338911) 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 in 3 ways as a sum of consecutive naturals, for example, 619833887 + ... + 619833896.

It is an arithmetic number, because the mean of its divisors is an integer number (1859501676).

Almost surely, 2^6198338915 is an apocalyptic number.

6198338915 is a deficient number, since it is larger than the sum of its proper divisors (1239667789).

6198338915 is a wasteful number, since it uses less digits than its factorization.

6198338915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239667788.

The product of its digits is 1399680, while the sum is 53.

The square root of 6198338915 is about 78729.5301332353. The cubic root of 6198338915 is about 1836.9264728035.

Subtracting from 6198338915 its reverse (5198338916), we obtain a palindrome (999999999).

The spelling of 6198338915 in words is "six billion, one hundred ninety-eight million, three hundred thirty-eight thousand, nine hundred fifteen".