89750366509 has 2 divisors, whose sum is σ = 89750366510. Its totient is φ = 89750366508.

The previous prime is 89750366507. The next prime is 89750366551. The reversal of 89750366509 is 90566305798.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89451837225 + 298529284 = 299085^2 + 17278^2 .

It is a cyclic number.

It is not a de Polignac number, because 89750366509 - 2¹ = 89750366507 is a prime.

Together with 89750366507, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89750366507) 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, 44875183254 + 44875183255.

It is an arithmetic number, because the mean of its divisors is an integer number (44875183255).

Almost surely, 2^89750366509 is an apocalyptic number.

It is an amenable number.

89750366509 is a deficient number, since it is larger than the sum of its proper divisors (1).

89750366509 is an equidigital number, since it uses as much as digits as its factorization.

89750366509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12247200, while the sum is 58.

The spelling of 89750366509 in words is "eighty-nine billion, seven hundred fifty million, three hundred sixty-six thousand, five hundred nine".