89175421823 has 2 divisors, whose sum is σ = 89175421824. Its totient is φ = 89175421822.

The previous prime is 89175421801. The next prime is 89175421871. The reversal of 89175421823 is 32812457198.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89175421823 - 2⁸ = 89175421567 is a prime.

It is a super-3 number, since 3×89175421823³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89175424823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44587710911 + 44587710912.

It is an arithmetic number, because the mean of its divisors is an integer number (44587710912).

Almost surely, 2^89175421823 is an apocalyptic number.

89175421823 is a deficient number, since it is larger than the sum of its proper divisors (1).

89175421823 is an equidigital number, since it uses as much as digits as its factorization.

89175421823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 50.

The spelling of 89175421823 in words is "eighty-nine billion, one hundred seventy-five million, four hundred twenty-one thousand, eight hundred twenty-three".