120988566779 has 2 divisors, whose sum is σ = 120988566780. Its totient is φ = 120988566778.

The previous prime is 120988566761. The next prime is 120988566817. The reversal of 120988566779 is 977665889021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120988566779 - 2²⁴ = 120971789563 is a prime.

It is not a weakly prime, because it can be changed into another prime (120988566709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60494283389 + 60494283390.

It is an arithmetic number, because the mean of its divisors is an integer number (60494283390).

Almost surely, 2^120988566779 is an apocalyptic number.

120988566779 is a deficient number, since it is larger than the sum of its proper divisors (1).

120988566779 is an equidigital number, since it uses as much as digits as its factorization.

120988566779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 68.

The spelling of 120988566779 in words is "one hundred twenty billion, nine hundred eighty-eight million, five hundred sixty-six thousand, seven hundred seventy-nine".