135580695979 has 2 divisors, whose sum is σ = 135580695980. Its totient is φ = 135580695978.

The previous prime is 135580695931. The next prime is 135580695983. The reversal of 135580695979 is 979596085531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135580695979 - 2⁷ = 135580695851 is a prime.

It is not a weakly prime, because it can be changed into another prime (135580695179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67790347989 + 67790347990.

It is an arithmetic number, because the mean of its divisors is an integer number (67790347990).

Almost surely, 2^135580695979 is an apocalyptic number.

135580695979 is a deficient number, since it is larger than the sum of its proper divisors (1).

135580695979 is an equidigital number, since it uses as much as digits as its factorization.

135580695979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854000, while the sum is 67.

The spelling of 135580695979 in words is "one hundred thirty-five billion, five hundred eighty million, six hundred ninety-five thousand, nine hundred seventy-nine".