6486145215541 has 2 divisors, whose sum is σ = 6486145215542. Its totient is φ = 6486145215540.

The previous prime is 6486145215509. The next prime is 6486145215547. The reversal of 6486145215541 is 1455125416846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4849398558225 + 1636746657316 = 2202135^2 + 1279354^2 .

It is a cyclic number.

It is not a de Polignac number, because 6486145215541 - 2⁵ = 6486145215509 is a prime.

It is a super-3 number, since 3×6486145215541³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6486145215547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3243072607770 + 3243072607771.

It is an arithmetic number, because the mean of its divisors is an integer number (3243072607771).

Almost surely, 2^{6486145215541} is an apocalyptic number.

It is an amenable number.

6486145215541 is a deficient number, since it is larger than the sum of its proper divisors (1).

6486145215541 is an equidigital number, since it uses as much as digits as its factorization.

6486145215541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608000, while the sum is 52.

The spelling of 6486145215541 in words is "six trillion, four hundred eighty-six billion, one hundred forty-five million, two hundred fifteen thousand, five hundred forty-one".