122027642489 has 32 divisors (see below), whose sum is σ = 134759272320. Its totient is φ = 109982057472.

The previous prime is 122027642437. The next prime is 122027642507. The reversal of 122027642489 is 984246720221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122027642489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122024642489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31668887 + ... + 31672739.

It is an arithmetic number, because the mean of its divisors is an integer number (4211227260).

Almost surely, 2^122027642489 is an apocalyptic number.

It is an amenable number.

122027642489 is a deficient number, since it is larger than the sum of its proper divisors (12731629831).

122027642489 is a wasteful number, since it uses less digits than its factorization.

122027642489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4409.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 122027642489 in words is "one hundred twenty-two billion, twenty-seven million, six hundred forty-two thousand, four hundred eighty-nine".