128252852816628 has 48 divisors (see below), whose sum is σ = 299563143938240. Its totient is φ = 42707168849664.

The previous prime is 128252852816611. The next prime is 128252852816659. The reversal of 128252852816628 is 826618258252821.

It is a congruent number.

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, 805564200 + ... + 805723392.

Almost surely, 2^{128252852816628} is an apocalyptic number.

It is an amenable number.

128252852816628 is an abundant number, since it is smaller than the sum of its proper divisors (171310291121612).

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

128252852816628 is a wasteful number, since it uses less digits than its factorization.

128252852816628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227536 (or 227534 counting only the distinct ones).

The product of its digits is 117964800, while the sum is 66.

The spelling of 128252852816628 in words is "one hundred twenty-eight trillion, two hundred fifty-two billion, eight hundred fifty-two million, eight hundred sixteen thousand, six hundred twenty-eight".