69488307865 has 4 divisors (see below), whose sum is σ = 83385969444. Its totient is φ = 55590646288.

The previous prime is 69488307853. The next prime is 69488307877. The reversal of 69488307865 is 56870388496.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (69488307853) and next prime (69488307877).

It can be written as a sum of positive squares in 2 ways, for example, as 21648119689 + 47840188176 = 147133^2 + 218724^2 .

It is a cyclic number.

It is not a de Polignac number, because 69488307865 - 2⁹ = 69488307353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69488307797 and 69488307806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6948830782 + ... + 6948830791.

It is an arithmetic number, because the mean of its divisors is an integer number (20846492361).

Almost surely, 2^69488307865 is an apocalyptic number.

It is an amenable number.

69488307865 is a deficient number, since it is larger than the sum of its proper divisors (13897661579).

69488307865 is a wasteful number, since it uses less digits than its factorization.

69488307865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13897661578.

The product of its (nonzero) digits is 69672960, while the sum is 64.

The spelling of 69488307865 in words is "sixty-nine billion, four hundred eighty-eight million, three hundred seven thousand, eight hundred sixty-five".