6545260620427 has 2 divisors, whose sum is σ = 6545260620428. Its totient is φ = 6545260620426.

The previous prime is 6545260620383. The next prime is 6545260620443. The reversal of 6545260620427 is 7240260625456.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6545260620427 is a prime.

It is not a weakly prime, because it can be changed into another prime (6545260620497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3272630310213 + 3272630310214.

It is an arithmetic number, because the mean of its divisors is an integer number (3272630310214).

Almost surely, 2^{6545260620427} is an apocalyptic number.

6545260620427 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545260620427 is an equidigital number, since it uses as much as digits as its factorization.

6545260620427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 6545260620427 in words is "six trillion, five hundred forty-five billion, two hundred sixty million, six hundred twenty thousand, four hundred twenty-seven".