133891760771 has 2 divisors, whose sum is σ = 133891760772. Its totient is φ = 133891760770.

The previous prime is 133891760719. The next prime is 133891760777. The reversal of 133891760771 is 177067198331.

It is a strong prime.

It is an emirp because it is prime and its reverse (177067198331) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133891760771 is a prime.

It is not a weakly prime, because it can be changed into another prime (133891760777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66945880385 + 66945880386.

It is an arithmetic number, because the mean of its divisors is an integer number (66945880386).

Almost surely, 2^133891760771 is an apocalyptic number.

133891760771 is a deficient number, since it is larger than the sum of its proper divisors (1).

133891760771 is an equidigital number, since it uses as much as digits as its factorization.

133891760771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 133891760771 in words is "one hundred thirty-three billion, eight hundred ninety-one million, seven hundred sixty thousand, seven hundred seventy-one".