6541654597 has 2 divisors, whose sum is σ = 6541654598. Its totient is φ = 6541654596.

The previous prime is 6541654577. The next prime is 6541654631. The reversal of 6541654597 is 7954561456.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5626350081 + 915304516 = 75009^2 + 30254^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6541654597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6541654517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3270827298 + 3270827299.

It is an arithmetic number, because the mean of its divisors is an integer number (3270827299).

Almost surely, 2^6541654597 is an apocalyptic number.

It is an amenable number.

6541654597 is a deficient number, since it is larger than the sum of its proper divisors (1).

6541654597 is an equidigital number, since it uses as much as digits as its factorization.

6541654597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536000, while the sum is 52.

The square root of 6541654597 is about 80880.4957761759. The cubic root of 6541654597 is about 1870.2336632150.

The spelling of 6541654597 in words is "six billion, five hundred forty-one million, six hundred fifty-four thousand, five hundred ninety-seven".