6518431081411 has 8 divisors (see below), whose sum is σ = 6676192191744. Its totient is φ = 6361957817280.

The previous prime is 6518431081403. The next prime is 6518431081427. The reversal of 6518431081411 is 1141801348156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6518431081411 - 2³ = 6518431081403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6518431081711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321951306 + ... + 321971551.

It is an arithmetic number, because the mean of its divisors is an integer number (834524023968).

Almost surely, 2^{6518431081411} is an apocalyptic number.

6518431081411 is a deficient number, since it is larger than the sum of its proper divisors (157761110333).

6518431081411 is a wasteful number, since it uses less digits than its factorization.

6518431081411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643923101.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 6518431081411 in words is "six trillion, five hundred eighteen billion, four hundred thirty-one million, eighty-one thousand, four hundred eleven".