6948533989 has 2 divisors, whose sum is σ = 6948533990. Its totient is φ = 6948533988.

The previous prime is 6948533971. The next prime is 6948534059. The reversal of 6948533989 is 9893358496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6893150625 + 55383364 = 83025^2 + 7442^2 .

It is a cyclic number.

It is not a de Polignac number, because 6948533989 - 2⁷ = 6948533861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6948533989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6948537989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3474266994 + 3474266995.

It is an arithmetic number, because the mean of its divisors is an integer number (3474266995).

Almost surely, 2^6948533989 is an apocalyptic number.

It is an amenable number.

6948533989 is a deficient number, since it is larger than the sum of its proper divisors (1).

6948533989 is an equidigital number, since it uses as much as digits as its factorization.

6948533989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50388480, while the sum is 64.

The square root of 6948533989 is about 83357.8669892650. The cubic root of 6948533989 is about 1908.2315062227.

The spelling of 6948533989 in words is "six billion, nine hundred forty-eight million, five hundred thirty-three thousand, nine hundred eighty-nine".