84905368927 has 2 divisors, whose sum is σ = 84905368928. Its totient is φ = 84905368926.

The previous prime is 84905368903. The next prime is 84905368931. The reversal of 84905368927 is 72986350948.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84905368927 - 2³¹ = 82757885279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84905368967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42452684463 + 42452684464.

It is an arithmetic number, because the mean of its divisors is an integer number (42452684464).

Almost surely, 2^84905368927 is an apocalyptic number.

84905368927 is a deficient number, since it is larger than the sum of its proper divisors (1).

84905368927 is an equidigital number, since it uses as much as digits as its factorization.

84905368927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 84905368927 in words is "eighty-four billion, nine hundred five million, three hundred sixty-eight thousand, nine hundred twenty-seven".