72219068889 has 12 divisors (see below), whose sum is σ = 105841721328. Its totient is φ = 43769132440.

The previous prime is 72219068881. The next prime is 72219068941. The reversal of 72219068889 is 98886091227.

It is not a de Polignac number, because 72219068889 - 2³ = 72219068881 is a prime.

It is a super-2 number, since 2×72219068889² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72219068881) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 99474939 + ... + 99475664.

It is an arithmetic number, because the mean of its divisors is an integer number (8820143444).

Almost surely, 2^72219068889 is an apocalyptic number.

It is an amenable number.

72219068889 is a deficient number, since it is larger than the sum of its proper divisors (33622652439).

72219068889 is a wasteful number, since it uses less digits than its factorization.

72219068889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198950628 (or 198950617 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 60.

The spelling of 72219068889 in words is "seventy-two billion, two hundred nineteen million, sixty-eight thousand, eight hundred eighty-nine".