50720129429779 has 2 divisors, whose sum is σ = 50720129429780. Its totient is φ = 50720129429778.

The previous prime is 50720129429759. The next prime is 50720129429819. The reversal of 50720129429779 is 97792492102705.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50720129429779 - 2²³ = 50720121041171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50720129429779.

It is not a weakly prime, because it can be changed into another prime (50720129429729) 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 as a sum of consecutive naturals, namely, 25360064714889 + 25360064714890.

It is an arithmetic number, because the mean of its divisors is an integer number (25360064714890).

Almost surely, 2^{50720129429779} is an apocalyptic number.

50720129429779 is a deficient number, since it is larger than the sum of its proper divisors (1).

50720129429779 is an equidigital number, since it uses as much as digits as its factorization.

50720129429779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40007520, while the sum is 64.

The spelling of 50720129429779 in words is "fifty trillion, seven hundred twenty billion, one hundred twenty-nine million, four hundred twenty-nine thousand, seven hundred seventy-nine".