89746819847 has 2 divisors, whose sum is σ = 89746819848. Its totient is φ = 89746819846.

The previous prime is 89746819829. The next prime is 89746819889. The reversal of 89746819847 is 74891864798.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89746819847 - 2⁶ = 89746819783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89746810847) 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, 44873409923 + 44873409924.

It is an arithmetic number, because the mean of its divisors is an integer number (44873409924).

Almost surely, 2^89746819847 is an apocalyptic number.

89746819847 is a deficient number, since it is larger than the sum of its proper divisors (1).

89746819847 is an equidigital number, since it uses as much as digits as its factorization.

89746819847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 195084288, while the sum is 71.

The spelling of 89746819847 in words is "eighty-nine billion, seven hundred forty-six million, eight hundred nineteen thousand, eight hundred forty-seven".