6481385184487 has 2 divisors, whose sum is σ = 6481385184488. Its totient is φ = 6481385184486.

The previous prime is 6481385184451. The next prime is 6481385184503. The reversal of 6481385184487 is 7844815831846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6481385184487 - 2⁷ = 6481385184359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6481385184427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3240692592243 + 3240692592244.

It is an arithmetic number, because the mean of its divisors is an integer number (3240692592244).

Almost surely, 2^{6481385184487} is an apocalyptic number.

6481385184487 is a deficient number, since it is larger than the sum of its proper divisors (1).

6481385184487 is an equidigital number, since it uses as much as digits as its factorization.

6481385184487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165150720, while the sum is 67.

The spelling of 6481385184487 in words is "six trillion, four hundred eighty-one billion, three hundred eighty-five million, one hundred eighty-four thousand, four hundred eighty-seven".