84840666727 has 2 divisors, whose sum is σ = 84840666728. Its totient is φ = 84840666726.

The previous prime is 84840666721. The next prime is 84840666733. The reversal of 84840666727 is 72766604848.

It is a balanced prime because it is at equal distance from previous prime (84840666721) and next prime (84840666733).

It is a cyclic number.

It is not a de Polignac number, because 84840666727 - 2³ = 84840666719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84840666721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42420333363 + 42420333364.

It is an arithmetic number, because the mean of its divisors is an integer number (42420333364).

Almost surely, 2^84840666727 is an apocalyptic number.

84840666727 is a deficient number, since it is larger than the sum of its proper divisors (1).

84840666727 is an equidigital number, since it uses as much as digits as its factorization.

84840666727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21676032, while the sum is 58.

The spelling of 84840666727 in words is "eighty-four billion, eight hundred forty million, six hundred sixty-six thousand, seven hundred twenty-seven".