6948276721 has 4 divisors (see below), whose sum is σ = 7187872500. Its totient is φ = 6708680944.

The previous prime is 6948276679. The next prime is 6948276739. The reversal of 6948276721 is 1276728496.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5484143025 + 1464133696 = 74055^2 + 38264^2 .

It is a cyclic number.

It is not a de Polignac number, because 6948276721 - 2¹³ = 6948268529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6948276781) 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, 119797846 + ... + 119797903.

It is an arithmetic number, because the mean of its divisors is an integer number (1796968125).

Almost surely, 2^6948276721 is an apocalyptic number.

It is an amenable number.

6948276721 is a deficient number, since it is larger than the sum of its proper divisors (239595779).

6948276721 is a wasteful number, since it uses less digits than its factorization.

6948276721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239595778.

The product of its digits is 2032128, while the sum is 52.

The square root of 6948276721 is about 83356.3238212914. The cubic root of 6948276721 is about 1908.2079553096.

The spelling of 6948276721 in words is "six billion, nine hundred forty-eight million, two hundred seventy-six thousand, seven hundred twenty-one".