89678205404461 has 2 divisors, whose sum is σ = 89678205404462. Its totient is φ = 89678205404460.

The previous prime is 89678205404443. The next prime is 89678205404477. The reversal of 89678205404461 is 16440450287698.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63627583356100 + 26050622048361 = 7976690^2 + 5103981^2 .

It is a cyclic number.

It is not a de Polignac number, because 89678205404461 - 2¹⁵ = 89678205371693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89678205404393 and 89678205404402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89678205404441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44839102702230 + 44839102702231.

It is an arithmetic number, because the mean of its divisors is an integer number (44839102702231).

Almost surely, 2^{89678205404461} is an apocalyptic number.

It is an amenable number.

89678205404461 is a deficient number, since it is larger than the sum of its proper divisors (1).

89678205404461 is an equidigital number, since it uses as much as digits as its factorization.

89678205404461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92897280, while the sum is 64.

The spelling of 89678205404461 in words is "eighty-nine trillion, six hundred seventy-eight billion, two hundred five million, four hundred four thousand, four hundred sixty-one".