134935696891 has 2 divisors, whose sum is σ = 134935696892. Its totient is φ = 134935696890.

The previous prime is 134935696873. The next prime is 134935696921. The reversal of 134935696891 is 198696539431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134935696891 - 2³⁵ = 100575958523 is a prime.

It is not a weakly prime, because it can be changed into another prime (134935696811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67467848445 + 67467848446.

It is an arithmetic number, because the mean of its divisors is an integer number (67467848446).

Almost surely, 2^134935696891 is an apocalyptic number.

134935696891 is a deficient number, since it is larger than the sum of its proper divisors (1).

134935696891 is an equidigital number, since it uses as much as digits as its factorization.

134935696891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37791360, while the sum is 64.

The spelling of 134935696891 in words is "one hundred thirty-four billion, nine hundred thirty-five million, six hundred ninety-six thousand, eight hundred ninety-one".