6943348081 has 4 divisors (see below), whose sum is σ = 6949610100. Its totient is φ = 6937086064.

The previous prime is 6943348057. The next prime is 6943348091. The reversal of 6943348081 is 1808433496.

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 61152400 + 6882195681 = 7820^2 + 82959^2 .

It is a cyclic number.

It is not a de Polignac number, because 6943348081 - 2²⁹ = 6406477169 is a prime.

It is a super-2 number, since 2×6943348081² = 96420165147852765122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6943348091) 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 3 ways as a sum of consecutive naturals, for example, 3129346 + ... + 3131563.

It is an arithmetic number, because the mean of its divisors is an integer number (1737402525).

Almost surely, 2^6943348081 is an apocalyptic number.

It is an amenable number.

6943348081 is a deficient number, since it is larger than the sum of its proper divisors (6262019).

6943348081 is a wasteful number, since it uses less digits than its factorization.

6943348081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262018.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 6943348081 is about 83326.7548930114. The cubic root of 6943348081 is about 1907.7566638101.

The spelling of 6943348081 in words is "six billion, nine hundred forty-three million, three hundred forty-eight thousand, eighty-one".