89839526389 has 2 divisors, whose sum is σ = 89839526390. Its totient is φ = 89839526388.

The previous prime is 89839526353. The next prime is 89839526407. The reversal of 89839526389 is 98362593898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79392642289 + 10446884100 = 281767^2 + 102210^2 .

It is a cyclic number.

It is not a de Polignac number, because 89839526389 - 2¹⁵ = 89839493621 is a prime.

It is a super-2 number, since 2×89839526389² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89839526789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44919763194 + 44919763195.

It is an arithmetic number, because the mean of its divisors is an integer number (44919763195).

Almost surely, 2^89839526389 is an apocalyptic number.

It is an amenable number.

89839526389 is a deficient number, since it is larger than the sum of its proper divisors (1).

89839526389 is an equidigital number, since it uses as much as digits as its factorization.

89839526389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201553920, while the sum is 70.

The spelling of 89839526389 in words is "eighty-nine billion, eight hundred thirty-nine million, five hundred twenty-six thousand, three hundred eighty-nine".