6742728979 has 4 divisors (see below), whose sum is σ = 7705975984. Its totient is φ = 5779481976.

The previous prime is 6742728977. The next prime is 6742729027. The reversal of 6742728979 is 9798272476.

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 6742728979 - 2¹ = 6742728977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6742728977) 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, 481623492 + ... + 481623505.

It is an arithmetic number, because the mean of its divisors is an integer number (1926493996).

Almost surely, 2^6742728979 is an apocalyptic number.

6742728979 is a deficient number, since it is larger than the sum of its proper divisors (963247005).

6742728979 is an equidigital number, since it uses as much as digits as its factorization.

6742728979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963247004.

The product of its digits is 21337344, while the sum is 61.

The square root of 6742728979 is about 82114.1216783082. The cubic root of 6742728979 is about 1889.2027449368.

The spelling of 6742728979 in words is "six billion, seven hundred forty-two million, seven hundred twenty-eight thousand, nine hundred seventy-nine".