6408991330487 has 2 divisors, whose sum is σ = 6408991330488. Its totient is φ = 6408991330486.

The previous prime is 6408991330463. The next prime is 6408991330549. The reversal of 6408991330487 is 7840331998046.

It is an a-pointer prime, because the next prime (6408991330549) can be obtained adding 6408991330487 to its sum of digits (62).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6408991330487 - 2¹⁰ = 6408991329463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6408991330447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3204495665243 + 3204495665244.

It is an arithmetic number, because the mean of its divisors is an integer number (3204495665244).

Almost surely, 2^{6408991330487} is an apocalyptic number.

6408991330487 is a deficient number, since it is larger than the sum of its proper divisors (1).

6408991330487 is an equidigital number, since it uses as much as digits as its factorization.

6408991330487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 6408991330487 in words is "six trillion, four hundred eight billion, nine hundred ninety-one million, three hundred thirty thousand, four hundred eighty-seven".