128753937508 has 24 divisors (see below), whose sum is σ = 257545737344. Its totient is φ = 55172145600.

The previous prime is 128753937467. The next prime is 128753937523. The reversal of 128753937508 is 805739357821.

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, 142233 + ... + 527008.

Almost surely, 2^128753937508 is an apocalyptic number.

It is an amenable number.

128753937508 is an abundant number, since it is smaller than the sum of its proper divisors (128791799836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128753937508 is a wasteful number, since it uses less digits than its factorization.

128753937508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676123 (or 676121 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 58.

The spelling of 128753937508 in words is "one hundred twenty-eight billion, seven hundred fifty-three million, nine hundred thirty-seven thousand, five hundred eight".