6542586419421 has 12 divisors (see below), whose sum is σ = 9446101103328. Its totient is φ = 4026207027024.

The previous prime is 6542586419401. The next prime is 6542586419459. The reversal of 6542586419421 is 1249146852456.

It is not a de Polignac number, because 6542586419421 - 2³⁸ = 6267708512477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6542586419401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6452254345 + ... + 6452255358.

It is an arithmetic number, because the mean of its divisors is an integer number (787175091944).

Almost surely, 2^{6542586419421} is an apocalyptic number.

It is an amenable number.

6542586419421 is a deficient number, since it is larger than the sum of its proper divisors (2903514683907).

6542586419421 is a wasteful number, since it uses less digits than its factorization.

6542586419421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12904509732 (or 12904509719 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 57.

The spelling of 6542586419421 in words is "six trillion, five hundred forty-two billion, five hundred eighty-six million, four hundred nineteen thousand, four hundred twenty-one".