28089710103 has 32 divisors (see below), whose sum is σ = 46109787136. Its totient is φ = 14812098048.

The previous prime is 28089710069. The next prime is 28089710149. The reversal of 28089710103 is 30101798082.

It is not a de Polignac number, because 28089710103 - 2²¹ = 28087612951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28089710153) 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, 1021926 + ... + 1049052.

It is an arithmetic number, because the mean of its divisors is an integer number (1440930848).

Almost surely, 2^28089710103 is an apocalyptic number.

28089710103 is a deficient number, since it is larger than the sum of its proper divisors (18020077033).

28089710103 is a wasteful number, since it uses less digits than its factorization.

28089710103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30943.

The product of its (nonzero) digits is 24192, while the sum is 39.

The spelling of 28089710103 in words is "twenty-eight billion, eighty-nine million, seven hundred ten thousand, one hundred three".