72189876622 has 16 divisors (see below), whose sum is σ = 109102214880. Its totient is φ = 35822602368.

The previous prime is 72189876617. The next prime is 72189876623. The reversal of 72189876622 is 22667898127.

It is a happy number.

It is a super-2 number, since 2×72189876622² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72189876623) 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, 1155154 + ... + 1216042.

It is an arithmetic number, because the mean of its divisors is an integer number (6818888430).

Almost surely, 2^72189876622 is an apocalyptic number.

72189876622 is a deficient number, since it is larger than the sum of its proper divisors (36912338258).

72189876622 is a wasteful number, since it uses less digits than its factorization.

72189876622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65355.

The product of its digits is 8128512, while the sum is 58.

The spelling of 72189876622 in words is "seventy-two billion, one hundred eighty-nine million, eight hundred seventy-six thousand, six hundred twenty-two".