128303335875508 has 12 divisors (see below), whose sum is σ = 225960970507972. Its totient is φ = 63743058587520.

The previous prime is 128303335875487. The next prime is 128303335875521. The reversal of 128303335875508 is 805578533303821.

It can be written as a sum of positive squares in 2 ways, for example, as 88053675550864 + 40249660324644 = 9383692^2 + 6344262^2 .

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102152336853 + ... + 102152338108.

Almost surely, 2^{128303335875508} is an apocalyptic number.

It is an amenable number.

128303335875508 is a deficient number, since it is larger than the sum of its proper divisors (97657634632464).

128303335875508 is a wasteful number, since it uses less digits than its factorization.

128303335875508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204304675122 (or 204304675120 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 61.

The spelling of 128303335875508 in words is "one hundred twenty-eight trillion, three hundred three billion, three hundred thirty-five million, eight hundred seventy-five thousand, five hundred eight".