69874550789 has 2 divisors, whose sum is σ = 69874550790. Its totient is φ = 69874550788.

The previous prime is 69874550773. The next prime is 69874550843. The reversal of 69874550789 is 98705547896.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40164168100 + 29710382689 = 200410^2 + 172367^2 .

It is a cyclic number.

It is not a de Polignac number, because 69874550789 - 2⁴ = 69874550773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69874850789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34937275394 + 34937275395.

It is an arithmetic number, because the mean of its divisors is an integer number (34937275395).

Almost surely, 2^69874550789 is an apocalyptic number.

It is an amenable number.

69874550789 is a deficient number, since it is larger than the sum of its proper divisors (1).

69874550789 is an equidigital number, since it uses as much as digits as its factorization.

69874550789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 152409600, while the sum is 68.

The spelling of 69874550789 in words is "sixty-nine billion, eight hundred seventy-four million, five hundred fifty thousand, seven hundred eighty-nine".