6545324491 has 2 divisors, whose sum is σ = 6545324492. Its totient is φ = 6545324490.

The previous prime is 6545324449. The next prime is 6545324587. The reversal of 6545324491 is 1944235456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6545324491 - 2¹⁷ = 6545193419 is a prime.

It is not a weakly prime, because it can be changed into another prime (6545324441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3272662245 + 3272662246.

It is an arithmetic number, because the mean of its divisors is an integer number (3272662246).

Almost surely, 2^6545324491 is an apocalyptic number.

6545324491 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545324491 is an equidigital number, since it uses as much as digits as its factorization.

6545324491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The square root of 6545324491 is about 80903.1797335556. The cubic root of 6545324491 is about 1870.5833339852.

The spelling of 6545324491 in words is "six billion, five hundred forty-five million, three hundred twenty-four thousand, four hundred ninety-one".