6742299979 has 4 divisors (see below), whose sum is σ = 6742625976. Its totient is φ = 6741973984.

The previous prime is 6742299917. The next prime is 6742299997. The reversal of 6742299979 is 9799922476.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6742299979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6742299979.

It is not an unprimeable number, because it can be changed into a prime (6742299379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129709 + ... + 174094.

It is an arithmetic number, because the mean of its divisors is an integer number (1685656494).

Almost surely, 2^6742299979 is an apocalyptic number.

6742299979 is a deficient number, since it is larger than the sum of its proper divisors (325997).

6742299979 is a wasteful number, since it uses less digits than its factorization.

6742299979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325996.

The product of its digits is 30862944, while the sum is 64.

The square root of 6742299979 is about 82111.5094185949. The cubic root of 6742299979 is about 1889.1626778181.

The spelling of 6742299979 in words is "six billion, seven hundred forty-two million, two hundred ninety-nine thousand, nine hundred seventy-nine".