135529289668 has 12 divisors (see below), whose sum is σ = 237195661612. Its totient is φ = 67759100640.

The previous prime is 135529289617. The next prime is 135529289729. The reversal of 135529289668 is 866982925531.

It can be written as a sum of positive squares in 2 ways, for example, as 85087723204 + 50441566464 = 291698^2 + 224592^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330803 + ... + 1429018.

Almost surely, 2^135529289668 is an apocalyptic number.

It is an amenable number.

135529289668 is a deficient number, since it is larger than the sum of its proper divisors (101666371944).

135529289668 is a wasteful number, since it uses less digits than its factorization.

135529289668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772102 (or 2772100 counting only the distinct ones).

The product of its digits is 55987200, while the sum is 64.

The spelling of 135529289668 in words is "one hundred thirty-five billion, five hundred twenty-nine million, two hundred eighty-nine thousand, six hundred sixty-eight".