89751680393 has 2 divisors, whose sum is σ = 89751680394. Its totient is φ = 89751680392.

The previous prime is 89751680377. The next prime is 89751680411. The reversal of 89751680393 is 39308615798.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81811444729 + 7940235664 = 286027^2 + 89108^2 .

It is a cyclic number.

It is not a de Polignac number, because 89751680393 - 2⁴ = 89751680377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (89751680323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44875840196 + 44875840197.

It is an arithmetic number, because the mean of its divisors is an integer number (44875840197).

Almost surely, 2^89751680393 is an apocalyptic number.

It is an amenable number.

89751680393 is a deficient number, since it is larger than the sum of its proper divisors (1).

89751680393 is an equidigital number, since it uses as much as digits as its factorization.

89751680393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 89751680393 in words is "eighty-nine billion, seven hundred fifty-one million, six hundred eighty thousand, three hundred ninety-three".