69421019009 has 16 divisors (see below), whose sum is σ = 71842858368. Its totient is φ = 67029835392.

The previous prime is 69421018973. The next prime is 69421019011. The reversal of 69421019009 is 90091012496.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 69421019009 - 2⁸ = 69421018753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69421019089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2615684 + ... + 2642090.

It is an arithmetic number, because the mean of its divisors is an integer number (4490178648).

Almost surely, 2^69421019009 is an apocalyptic number.

It is an amenable number.

69421019009 is a deficient number, since it is larger than the sum of its proper divisors (2421839359).

69421019009 is a wasteful number, since it uses less digits than its factorization.

69421019009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26984.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 69421019009 in words is "sixty-nine billion, four hundred twenty-one million, nineteen thousand, nine".