128260851400264 has 64 divisors (see below), whose sum is σ = 271325259878400. Its totient is φ = 56337675201600.

The previous prime is 128260851400229. The next prime is 128260851400271. The reversal of 128260851400264 is 462004158062821.

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, 195944422 + ... + 196597909.

It is an arithmetic number, because the mean of its divisors is an integer number (4239457185600).

Almost surely, 2^{128260851400264} is an apocalyptic number.

It is an amenable number.

128260851400264 is an abundant number, since it is smaller than the sum of its proper divisors (143064408478136).

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

128260851400264 is a wasteful number, since it uses less digits than its factorization.

128260851400264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392542474 (or 392542470 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 128260851400264 in words is "one hundred twenty-eight trillion, two hundred sixty billion, eight hundred fifty-one million, four hundred thousand, two hundred sixty-four".