128235503697476 has 48 divisors (see below), whose sum is σ = 257085451633920. Its totient is φ = 54826411731840.

The previous prime is 128235503697407. The next prime is 128235503697481. The reversal of 128235503697476 is 674796305532821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 859188065 + ... + 859337303.

It is an arithmetic number, because the mean of its divisors is an integer number (5355946909040).

It is a 1-persistent number, because it is pandigital, but 2⋅128235503697476 = 256471007394952 is not.

Almost surely, 2^{128235503697476} is an apocalyptic number.

It is an amenable number.

128235503697476 is an abundant number, since it is smaller than the sum of its proper divisors (128849947936444).

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

128235503697476 is a wasteful number, since it uses less digits than its factorization.

128235503697476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222564 (or 222562 counting only the distinct ones).

The product of its (nonzero) digits is 457228800, while the sum is 68.

The spelling of 128235503697476 in words is "one hundred twenty-eight trillion, two hundred thirty-five billion, five hundred three million, six hundred ninety-seven thousand, four hundred seventy-six".