135880621747508 has 24 divisors (see below), whose sum is σ = 260766619190784. Its totient is φ = 61440547668800.

The previous prime is 135880621747483. The next prime is 135880621747547. The reversal of 135880621747508 is 805747126088531.

135880621747508 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8084274185 + ... + 8084290992.

It is an arithmetic number, because the mean of its divisors is an integer number (10865275799616).

Almost surely, 2^{135880621747508} is an apocalyptic number.

It is an amenable number.

135880621747508 is a deficient number, since it is larger than the sum of its proper divisors (124885997443276).

135880621747508 is a wasteful number, since it uses less digits than its factorization.

135880621747508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16168565383 (or 16168565381 counting only the distinct ones).

The product of its (nonzero) digits is 90316800, while the sum is 65.

The spelling of 135880621747508 in words is "one hundred thirty-five trillion, eight hundred eighty billion, six hundred twenty-one million, seven hundred forty-seven thousand, five hundred eight".