28271120754129 has 32 divisors (see below), whose sum is σ = 44389166054400. Its totient is φ = 15823915652160.

The previous prime is 28271120754113. The next prime is 28271120754139. The reversal of 28271120754129 is 92145702117282.

It is not a de Polignac number, because 28271120754129 - 2⁴ = 28271120754113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28271120754139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642182359 + ... + 642226380.

It is an arithmetic number, because the mean of its divisors is an integer number (1387161439200).

Almost surely, 2^{28271120754129} is an apocalyptic number.

28271120754129 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

28271120754129 is a deficient number, since it is larger than the sum of its proper divisors (16118045300271).

28271120754129 is a wasteful number, since it uses less digits than its factorization.

28271120754129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284408805.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The spelling of 28271120754129 in words is "twenty-eight trillion, two hundred seventy-one billion, one hundred twenty million, seven hundred fifty-four thousand, one hundred twenty-nine".