122647176992 has 18 divisors (see below), whose sum is σ = 241465530033. Its totient is φ = 61322597952.

The previous prime is 122647176929. The next prime is 122647176997. The reversal of 122647176992 is 299671746221.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 89829680656 + 32817496336 = 299716^2 + 181156^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247636.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122647176997) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1950134 + ... + 2012042.

Almost surely, 2^122647176992 is an apocalyptic number.

It is an amenable number.

122647176992 is a deficient number, since it is larger than the sum of its proper divisors (118818353041).

122647176992 is an frugal number, since it uses more digits than its factorization.

122647176992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123828 (or 61911 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 56.

The spelling of 122647176992 in words is "one hundred twenty-two billion, six hundred forty-seven million, one hundred seventy-six thousand, nine hundred ninety-two".