135488713518877 has 2 divisors, whose sum is σ = 135488713518878. Its totient is φ = 135488713518876.

The previous prime is 135488713518839. The next prime is 135488713518947. The reversal of 135488713518877 is 778815317884531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84944775469401 + 50543938049476 = 9216549^2 + 7109426^2 .

It is a cyclic number.

It is not a de Polignac number, because 135488713518877 - 2²⁷ = 135488579301149 is a prime.

It is a super-2 number, since 2×135488713518877² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135488713518827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67744356759438 + 67744356759439.

It is an arithmetic number, because the mean of its divisors is an integer number (67744356759439).

Almost surely, 2^{135488713518877} is an apocalyptic number.

It is an amenable number.

135488713518877 is a deficient number, since it is larger than the sum of its proper divisors (1).

135488713518877 is an equidigital number, since it uses as much as digits as its factorization.

135488713518877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1264435200, while the sum is 76.

The spelling of 135488713518877 in words is "one hundred thirty-five trillion, four hundred eighty-eight billion, seven hundred thirteen million, five hundred eighteen thousand, eight hundred seventy-seven".