6541187231503 has 16 divisors (see below), whose sum is σ = 6586630053696. Its totient is φ = 6495877346560.

The previous prime is 6541187231497. The next prime is 6541187231519. The reversal of 6541187231503 is 3051327811456.

It is a cyclic number.

It is not a de Polignac number, because 6541187231503 - 2⁵ = 6541187231471 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 (6541187231533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313369875 + ... + 313390747.

It is an arithmetic number, because the mean of its divisors is an integer number (411664378356).

Almost surely, 2^{6541187231503} is an apocalyptic number.

6541187231503 is a deficient number, since it is larger than the sum of its proper divisors (45442822193).

6541187231503 is a wasteful number, since it uses less digits than its factorization.

6541187231503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23954.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 6541187231503 in words is "six trillion, five hundred forty-one billion, one hundred eighty-seven million, two hundred thirty-one thousand, five hundred three".