120641580779 has 2 divisors, whose sum is σ = 120641580780. Its totient is φ = 120641580778.

The previous prime is 120641580757. The next prime is 120641580887. The reversal of 120641580779 is 977085146021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120641580779 - 2⁸ = 120641580523 is a prime.

It is not a weakly prime, because it can be changed into another prime (120641580179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60320790389 + 60320790390.

It is an arithmetic number, because the mean of its divisors is an integer number (60320790390).

Almost surely, 2^120641580779 is an apocalyptic number.

120641580779 is a deficient number, since it is larger than the sum of its proper divisors (1).

120641580779 is an equidigital number, since it uses as much as digits as its factorization.

120641580779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 120641580779 in words is "one hundred twenty billion, six hundred forty-one million, five hundred eighty thousand, seven hundred seventy-nine".