28128876743 has 32 divisors (see below), whose sum is σ = 34867929600. Its totient is φ = 22373366400.

The previous prime is 28128876731. The next prime is 28128876761. The reversal of 28128876743 is 34767882182.

It is not a de Polignac number, because 28128876743 - 2⁶ = 28128876679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28128876143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38513 + ... + 240293.

It is an arithmetic number, because the mean of its divisors is an integer number (1089622800).

Almost surely, 2^28128876743 is an apocalyptic number.

28128876743 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28128876743 is a deficient number, since it is larger than the sum of its proper divisors (6739052857).

28128876743 is a wasteful number, since it uses less digits than its factorization.

28128876743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201863.

The product of its digits is 7225344, while the sum is 56.

The spelling of 28128876743 in words is "twenty-eight billion, one hundred twenty-eight million, eight hundred seventy-six thousand, seven hundred forty-three".