6834533466581 has 4 divisors (see below), whose sum is σ = 6845096888352. Its totient is φ = 6823970044812.

The previous prime is 6834533466571. The next prime is 6834533466583. The reversal of 6834533466581 is 1856643354386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6834533466581 - 2¹⁸ = 6834533204437 is a prime.

It is a super-2 number, since 2×6834533466581² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6834533466583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5281709915 + ... + 5281711208.

It is an arithmetic number, because the mean of its divisors is an integer number (1711274222088).

Almost surely, 2^{6834533466581} is an apocalyptic number.

It is an amenable number.

6834533466581 is a deficient number, since it is larger than the sum of its proper divisors (10563421771).

6834533466581 is a wasteful number, since it uses less digits than its factorization.

6834533466581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10563421770.

The product of its digits is 149299200, while the sum is 62.

The spelling of 6834533466581 in words is "six trillion, eight hundred thirty-four billion, five hundred thirty-three million, four hundred sixty-six thousand, five hundred eighty-one".