89922836869 has 2 divisors, whose sum is σ = 89922836870. Its totient is φ = 89922836868.

The previous prime is 89922836851. The next prime is 89922836873. The reversal of 89922836869 is 96863822998.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70297628769 + 19625208100 = 265137^2 + 140090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89922836869 is a prime.

It is a super-2 number, since 2×89922836869² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89922836798 and 89922836807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89922836849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44961418434 + 44961418435.

It is an arithmetic number, because the mean of its divisors is an integer number (44961418435).

Almost surely, 2^89922836869 is an apocalyptic number.

It is an amenable number.

89922836869 is a deficient number, since it is larger than the sum of its proper divisors (1).

89922836869 is an equidigital number, since it uses as much as digits as its factorization.

89922836869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161243136, while the sum is 70.

The spelling of 89922836869 in words is "eighty-nine billion, nine hundred twenty-two million, eight hundred thirty-six thousand, eight hundred sixty-nine".