122789561671 has 16 divisors (see below), whose sum is σ = 149586611200. Its totient is φ = 98446671648.

The previous prime is 122789561669. The next prime is 122789561677. The reversal of 122789561671 is 176165987221.

It is a cyclic number.

It is not a de Polignac number, because 122789561671 - 2¹ = 122789561669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122789561677) 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 15 ways as a sum of consecutive naturals, for example, 5832720 + ... + 5853733.

It is an arithmetic number, because the mean of its divisors is an integer number (9349163200).

Almost surely, 2^122789561671 is an apocalyptic number.

122789561671 is a deficient number, since it is larger than the sum of its proper divisors (26797049529).

122789561671 is a wasteful number, since it uses less digits than its factorization.

122789561671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11686558.

The product of its digits is 2540160, while the sum is 55.

The spelling of 122789561671 in words is "one hundred twenty-two billion, seven hundred eighty-nine million, five hundred sixty-one thousand, six hundred seventy-one".