69408428217 has 8 divisors (see below), whose sum is σ = 92948696640. Its totient is φ = 46070222640.

The previous prime is 69408428203. The next prime is 69408428237. The reversal of 69408428217 is 71282480496.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 69408428217 - 2⁶ = 69408428153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69408428217.

It is not an unprimeable number, because it can be changed into a prime (69408428237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50514909 + ... + 50516282.

It is an arithmetic number, because the mean of its divisors is an integer number (11618587080).

Almost surely, 2^69408428217 is an apocalyptic number.

It is an amenable number.

69408428217 is a deficient number, since it is larger than the sum of its proper divisors (23540268423).

69408428217 is a wasteful number, since it uses less digits than its factorization.

69408428217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101031423.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 69408428217 in words is "sixty-nine billion, four hundred eight million, four hundred twenty-eight thousand, two hundred seventeen".