84864366420727 has 2 divisors, whose sum is σ = 84864366420728. Its totient is φ = 84864366420726.

The previous prime is 84864366420683. The next prime is 84864366420731. The reversal of 84864366420727 is 72702466346848.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84864366420727 - 2¹⁹ = 84864365896439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84864366424727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42432183210363 + 42432183210364.

It is an arithmetic number, because the mean of its divisors is an integer number (42432183210364).

Almost surely, 2^{84864366420727} is an apocalyptic number.

84864366420727 is a deficient number, since it is larger than the sum of its proper divisors (1).

84864366420727 is an equidigital number, since it uses as much as digits as its factorization.

84864366420727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 520224768, while the sum is 67.

The spelling of 84864366420727 in words is "eighty-four trillion, eight hundred sixty-four billion, three hundred sixty-six million, four hundred twenty thousand, seven hundred twenty-seven".