72069789808 has 20 divisors (see below), whose sum is σ = 146984440360. Its totient is φ = 34138321344.

The previous prime is 72069789787. The next prime is 72069789833. The reversal of 72069789808 is 80898796027.

It is a self number, because there is not a number n which added to its sum of digits gives 72069789808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118535535 + ... + 118536142.

It is an arithmetic number, because the mean of its divisors is an integer number (7349222018).

Almost surely, 2^72069789808 is an apocalyptic number.

It is an amenable number.

72069789808 is an abundant number, since it is smaller than the sum of its proper divisors (74914650552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72069789808 is a wasteful number, since it uses less digits than its factorization.

72069789808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237071704 (or 237071698 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 72069789808 in words is "seventy-two billion, sixty-nine million, seven hundred eighty-nine thousand, eight hundred eight".