84068831563 has 2 divisors, whose sum is σ = 84068831564. Its totient is φ = 84068831562.

The previous prime is 84068831549. The next prime is 84068831611. The reversal of 84068831563 is 36513886048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84068831563 - 2¹⁷ = 84068700491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84068831563.

It is not a weakly prime, because it can be changed into another prime (84068831503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42034415781 + 42034415782.

It is an arithmetic number, because the mean of its divisors is an integer number (42034415782).

Almost surely, 2^84068831563 is an apocalyptic number.

84068831563 is a deficient number, since it is larger than the sum of its proper divisors (1).

84068831563 is an equidigital number, since it uses as much as digits as its factorization.

84068831563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 84068831563 in words is "eighty-four billion, sixty-eight million, eight hundred thirty-one thousand, five hundred sixty-three".