28271120754128 has 80 divisors (see below), whose sum is σ = 66334059598464. Its totient is φ = 11394643230720.

The previous prime is 28271120754113. The next prime is 28271120754139. The reversal of 28271120754128 is 82145702117282.

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, 3292625 + ... + 8208752.

Almost surely, 2^{28271120754128} is an apocalyptic number.

28271120754128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28271120754128 is an abundant number, since it is smaller than the sum of its proper divisors (38062938844336).

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

28271120754128 is a wasteful number, since it uses less digits than its factorization.

28271120754128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11502700 (or 11502694 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 50.

The spelling of 28271120754128 in words is "twenty-eight trillion, two hundred seventy-one billion, one hundred twenty million, seven hundred fifty-four thousand, one hundred twenty-eight".