135668924689 has 8 divisors (see below), whose sum is σ = 136881095040. Its totient is φ = 134456957376.

The previous prime is 135668924681. The next prime is 135668924701. The reversal of 135668924689 is 986429866531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135668924689 - 2³ = 135668924681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135668924681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1502772 + ... + 1590490.

It is an arithmetic number, because the mean of its divisors is an integer number (17110136880).

Almost surely, 2^135668924689 is an apocalyptic number.

It is an amenable number.

135668924689 is a deficient number, since it is larger than the sum of its proper divisors (1212170351).

135668924689 is a wasteful number, since it uses less digits than its factorization.

135668924689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101519.

The product of its digits is 134369280, while the sum is 67.

The spelling of 135668924689 in words is "one hundred thirty-five billion, six hundred sixty-eight million, nine hundred twenty-four thousand, six hundred eighty-nine".