135932878673 has 2 divisors, whose sum is σ = 135932878674. Its totient is φ = 135932878672.

The previous prime is 135932878649. The next prime is 135932878693. The reversal of 135932878673 is 376878239531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76782747409 + 59150131264 = 277097^2 + 243208^2 .

It is a cyclic number.

It is not a de Polignac number, because 135932878673 - 2¹⁰ = 135932877649 is a prime.

It is not a weakly prime, because it can be changed into another prime (135932878633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67966439336 + 67966439337.

It is an arithmetic number, because the mean of its divisors is an integer number (67966439337).

Almost surely, 2^135932878673 is an apocalyptic number.

It is an amenable number.

135932878673 is a deficient number, since it is larger than the sum of its proper divisors (1).

135932878673 is an equidigital number, since it uses as much as digits as its factorization.

135932878673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 62.

The spelling of 135932878673 in words is "one hundred thirty-five billion, nine hundred thirty-two million, eight hundred seventy-eight thousand, six hundred seventy-three".