6798218939 has 4 divisors (see below), whose sum is σ = 6981954624. Its totient is φ = 6614483256.

The previous prime is 6798218909. The next prime is 6798218953. The reversal of 6798218939 is 9398128976.

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 6798218939 - 2¹⁶ = 6798153403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6798218909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91867787 + ... + 91867860.

It is an arithmetic number, because the mean of its divisors is an integer number (1745488656).

Almost surely, 2^6798218939 is an apocalyptic number.

6798218939 is a deficient number, since it is larger than the sum of its proper divisors (183735685).

6798218939 is a wasteful number, since it uses less digits than its factorization.

6798218939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183735684.

The product of its digits is 11757312, while the sum is 62.

The square root of 6798218939 is about 82451.3125365509. The cubic root of 6798218939 is about 1894.3710537998.

The spelling of 6798218939 in words is "six billion, seven hundred ninety-eight million, two hundred eighteen thousand, nine hundred thirty-nine".