135768753321 has 48 divisors (see below), whose sum is σ = 197584608000. Its totient is φ = 82693469376.

The previous prime is 135768753311. The next prime is 135768753389. The reversal of 135768753321 is 123357867531.

It is not a de Polignac number, because 135768753321 - 2⁶ = 135768753257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135768753311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79910130 + ... + 79911828.

It is an arithmetic number, because the mean of its divisors is an integer number (4116346000).

Almost surely, 2^135768753321 is an apocalyptic number.

It is an amenable number.

135768753321 is a deficient number, since it is larger than the sum of its proper divisors (61815854679).

135768753321 is a wasteful number, since it uses less digits than its factorization.

135768753321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3446 (or 3417 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 51.

The spelling of 135768753321 in words is "one hundred thirty-five billion, seven hundred sixty-eight million, seven hundred fifty-three thousand, three hundred twenty-one".