89478854329 has 2 divisors, whose sum is σ = 89478854330. Its totient is φ = 89478854328.

The previous prime is 89478854237. The next prime is 89478854473. The reversal of 89478854329 is 92345887498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51513111225 + 37965743104 = 226965^2 + 194848^2 .

It is a cyclic number.

It is not a de Polignac number, because 89478854329 - 2¹⁹ = 89478330041 is a prime.

It is not a weakly prime, because it can be changed into another prime (89478855329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44739427164 + 44739427165.

It is an arithmetic number, because the mean of its divisors is an integer number (44739427165).

Almost surely, 2^89478854329 is an apocalyptic number.

It is an amenable number.

89478854329 is a deficient number, since it is larger than the sum of its proper divisors (1).

89478854329 is an equidigital number, since it uses as much as digits as its factorization.

89478854329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139345920, while the sum is 67.

The spelling of 89478854329 in words is "eighty-nine billion, four hundred seventy-eight million, eight hundred fifty-four thousand, three hundred twenty-nine".