72617027622 has 16 divisors (see below), whose sum is σ = 149919025152. Its totient is φ = 23424847560.

The previous prime is 72617027621. The next prime is 72617027629. The reversal of 72617027622 is 22672071627.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72617027621) 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 7 ways as a sum of consecutive naturals, for example, 195206878 + ... + 195207249.

It is an arithmetic number, because the mean of its divisors is an integer number (9369939072).

Almost surely, 2^72617027622 is an apocalyptic number.

72617027622 is an abundant number, since it is smaller than the sum of its proper divisors (77301997530).

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

72617027622 is a wasteful number, since it uses less digits than its factorization.

72617027622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390414163.

The product of its (nonzero) digits is 197568, while the sum is 42.

The spelling of 72617027622 in words is "seventy-two billion, six hundred seventeen million, twenty-seven thousand, six hundred twenty-two".