481681243411687 has 4 divisors (see below), whose sum is σ = 525470447358216. Its totient is φ = 437892039465160.

The previous prime is 481681243411649. The next prime is 481681243411757. The reversal of 481681243411687 is 786114342186184.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-481681243411687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481681243411787) 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, 21894601973248 + ... + 21894601973269.

It is an arithmetic number, because the mean of its divisors is an integer number (131367611839554).

Almost surely, 2^{481681243411687} is an apocalyptic number.

481681243411687 is a deficient number, since it is larger than the sum of its proper divisors (43789203946529).

481681243411687 is a wasteful number, since it uses less digits than its factorization.

481681243411687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43789203946528.

The product of its digits is 49545216, while the sum is 64.

The spelling of 481681243411687 in words is "four hundred eighty-one trillion, six hundred eighty-one billion, two hundred forty-three million, four hundred eleven thousand, six hundred eighty-seven".