133825871779 has 2 divisors, whose sum is σ = 133825871780. Its totient is φ = 133825871778.

The previous prime is 133825871723. The next prime is 133825871849. The reversal of 133825871779 is 977178528331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133825871779 - 2³¹ = 131678388131 is a prime.

It is not a weakly prime, because it can be changed into another prime (133825875779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66912935889 + 66912935890.

It is an arithmetic number, because the mean of its divisors is an integer number (66912935890).

Almost surely, 2^133825871779 is an apocalyptic number.

133825871779 is a deficient number, since it is larger than the sum of its proper divisors (1).

133825871779 is an equidigital number, since it uses as much as digits as its factorization.

133825871779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120, while the sum is 61.

The spelling of 133825871779 in words is "one hundred thirty-three billion, eight hundred twenty-five million, eight hundred seventy-one thousand, seven hundred seventy-nine".