6948580581 has 12 divisors (see below), whose sum is σ = 10104201900. Its totient is φ = 4601296320.

The previous prime is 6948580567. The next prime is 6948580607. The reversal of 6948580581 is 1850858496.

It is a happy number.

6948580581 is a `hidden beast` number, since 6 + 9 + 4 + 8 + 58 + 0 + 581 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2133608481 + 4814972100 = 46191^2 + 69390^2 .

It is not a de Polignac number, because 6948580581 - 2⁶ = 6948580517 is a prime.

It is a super-2 number, since 2×6948580581² = 96565544181300595122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6948580511) 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 11 ways as a sum of consecutive naturals, for example, 2589480 + ... + 2592161.

It is an arithmetic number, because the mean of its divisors is an integer number (842016825).

Almost surely, 2^6948580581 is an apocalyptic number.

It is an amenable number.

6948580581 is a deficient number, since it is larger than the sum of its proper divisors (3155621319).

6948580581 is a wasteful number, since it uses less digits than its factorization.

6948580581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5181796 (or 5181793 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The square root of 6948580581 is about 83358.1464585196. The cubic root of 6948580581 is about 1908.2357713010.

The spelling of 6948580581 in words is "six billion, nine hundred forty-eight million, five hundred eighty thousand, five hundred eighty-one".