6730511278 has 4 divisors (see below), whose sum is σ = 10095766920. Its totient is φ = 3365255638.

The previous prime is 6730511261. The next prime is 6730511279. The reversal of 6730511278 is 8721150376.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6730511278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6730511279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1682627818 + ... + 1682627821.

It is an arithmetic number, because the mean of its divisors is an integer number (2523941730).

Almost surely, 2^6730511278 is an apocalyptic number.

6730511278 is a deficient number, since it is larger than the sum of its proper divisors (3365255642).

6730511278 is a wasteful number, since it uses less digits than its factorization.

6730511278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365255641.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 6730511278 is about 82039.6933075691. The cubic root of 6730511278 is about 1888.0609881593.

The spelling of 6730511278 in words is "six billion, seven hundred thirty million, five hundred eleven thousand, two hundred seventy-eight".