89865707069 has 2 divisors, whose sum is σ = 89865707070. Its totient is φ = 89865707068.

The previous prime is 89865707051. The next prime is 89865707119. The reversal of 89865707069 is 96070756898.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89648144569 + 217562500 = 299413^2 + 14750^2 .

It is a cyclic number.

It is not a de Polignac number, because 89865707069 - 2¹² = 89865702973 is a prime.

It is a super-2 number, since 2×89865707069² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89865706996 and 89865707014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89865707669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44932853534 + 44932853535.

It is an arithmetic number, because the mean of its divisors is an integer number (44932853535).

Almost surely, 2^89865707069 is an apocalyptic number.

It is an amenable number.

89865707069 is a deficient number, since it is larger than the sum of its proper divisors (1).

89865707069 is an equidigital number, since it uses as much as digits as its factorization.

89865707069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45722880, while the sum is 65.

The spelling of 89865707069 in words is "eighty-nine billion, eight hundred sixty-five million, seven hundred seven thousand, sixty-nine".