89629942709 has 2 divisors, whose sum is σ = 89629942710. Its totient is φ = 89629942708.

The previous prime is 89629942693. The next prime is 89629942747. The reversal of 89629942709 is 90724992698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89612218609 + 17724100 = 299353^2 + 4210^2 .

It is a cyclic number.

It is not a de Polignac number, because 89629942709 - 2⁴ = 89629942693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89629942769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44814971354 + 44814971355.

It is an arithmetic number, because the mean of its divisors is an integer number (44814971355).

Almost surely, 2^89629942709 is an apocalyptic number.

It is an amenable number.

89629942709 is a deficient number, since it is larger than the sum of its proper divisors (1).

89629942709 is an equidigital number, since it uses as much as digits as its factorization.

89629942709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35271936, while the sum is 65.

The spelling of 89629942709 in words is "eighty-nine billion, six hundred twenty-nine million, nine hundred forty-two thousand, seven hundred nine".