6481125586838 has 48 divisors (see below), whose sum is σ = 11333923848960. Its totient is φ = 2722263689376.

The previous prime is 6481125586811. The next prime is 6481125586879. The reversal of 6481125586838 is 8386855211846.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 36313823 + ... + 36491861.

It is an arithmetic number, because the mean of its divisors is an integer number (236123413520).

Almost surely, 2^{6481125586838} is an apocalyptic number.

6481125586838 is a deficient number, since it is larger than the sum of its proper divisors (4852798262122).

6481125586838 is a wasteful number, since it uses less digits than its factorization.

6481125586838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178509 (or 178312 counting only the distinct ones).

The product of its digits is 88473600, while the sum is 65.

The spelling of 6481125586838 in words is "six trillion, four hundred eighty-one billion, one hundred twenty-five million, five hundred eighty-six thousand, eight hundred thirty-eight".