120500617789 has 2 divisors, whose sum is σ = 120500617790. Its totient is φ = 120500617788.

The previous prime is 120500617747. The next prime is 120500617813. The reversal of 120500617789 is 987716005021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106874724889 + 13625892900 = 326917^2 + 116730^2 .

It is a cyclic number.

It is not a de Polignac number, because 120500617789 - 2⁷ = 120500617661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120500617889) 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 as a sum of consecutive naturals, namely, 60250308894 + 60250308895.

It is an arithmetic number, because the mean of its divisors is an integer number (60250308895).

Almost surely, 2^120500617789 is an apocalyptic number.

It is an amenable number.

120500617789 is a deficient number, since it is larger than the sum of its proper divisors (1).

120500617789 is an equidigital number, since it uses as much as digits as its factorization.

120500617789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 120500617789 in words is "one hundred twenty billion, five hundred million, six hundred seventeen thousand, seven hundred eighty-nine".