28128355763 has 12 divisors (see below), whose sum is σ = 29913379848. Its totient is φ = 26444452320.

The previous prime is 28128355757. The next prime is 28128355769. The reversal of 28128355763 is 36755382182.

It is an interprime number because it is at equal distance from previous prime (28128355757) and next prime (28128355769).

It is not a de Polignac number, because 28128355763 - 2¹⁶ = 28128290227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28128355769) 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 11 ways as a sum of consecutive naturals, for example, 250106 + ... + 344687.

It is an arithmetic number, because the mean of its divisors is an integer number (2492781654).

Almost surely, 2^28128355763 is an apocalyptic number.

28128355763 is a deficient number, since it is larger than the sum of its proper divisors (1785024085).

28128355763 is a wasteful number, since it uses less digits than its factorization.

28128355763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594962 (or 594943 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 50.

The spelling of 28128355763 in words is "twenty-eight billion, one hundred twenty-eight million, three hundred fifty-five thousand, seven hundred sixty-three".