28316428873 has 2 divisors, whose sum is σ = 28316428874. Its totient is φ = 28316428872.

The previous prime is 28316428853. The next prime is 28316428891. The reversal of 28316428873 is 37882461382.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16198161984 + 12118266889 = 127272^2 + 110083^2 .

It is a cyclic number.

It is not a de Polignac number, because 28316428873 - 2¹³ = 28316420681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28316428873.

It is not a weakly prime, because it can be changed into another prime (28316428853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14158214436 + 14158214437.

It is an arithmetic number, because the mean of its divisors is an integer number (14158214437).

Almost surely, 2^28316428873 is an apocalyptic number.

It is an amenable number.

28316428873 is a deficient number, since it is larger than the sum of its proper divisors (1).

28316428873 is an equidigital number, since it uses as much as digits as its factorization.

28316428873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 52.

The spelling of 28316428873 in words is "twenty-eight billion, three hundred sixteen million, four hundred twenty-eight thousand, eight hundred seventy-three".