69204428509 has 4 divisors (see below), whose sum is σ = 69216158016. Its totient is φ = 69192699004.

The previous prime is 69204428477. The next prime is 69204428519. The reversal of 69204428509 is 90582440296.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69204428509 - 2⁵ = 69204428477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69204428519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5855899 + ... + 5867704.

It is an arithmetic number, because the mean of its divisors is an integer number (17304039504).

Almost surely, 2^69204428509 is an apocalyptic number.

It is an amenable number.

69204428509 is a deficient number, since it is larger than the sum of its proper divisors (11729507).

69204428509 is a wasteful number, since it uses less digits than its factorization.

69204428509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11729506.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 69204428509 in words is "sixty-nine billion, two hundred four million, four hundred twenty-eight thousand, five hundred nine".