135361946887 has 2 divisors, whose sum is σ = 135361946888. Its totient is φ = 135361946886.

The previous prime is 135361946861. The next prime is 135361946893. The reversal of 135361946887 is 788649163531.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (788649163531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135361946887 - 2²³ = 135353558279 is a prime.

It is a super-3 number, since 3×135361946887³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135361946857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67680973443 + 67680973444.

It is an arithmetic number, because the mean of its divisors is an integer number (67680973444).

Almost surely, 2^135361946887 is an apocalyptic number.

135361946887 is a deficient number, since it is larger than the sum of its proper divisors (1).

135361946887 is an equidigital number, since it uses as much as digits as its factorization.

135361946887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 61.

The spelling of 135361946887 in words is "one hundred thirty-five billion, three hundred sixty-one million, nine hundred forty-six thousand, eight hundred eighty-seven".