28317880037 has 2 divisors, whose sum is σ = 28317880038. Its totient is φ = 28317880036.

The previous prime is 28317880021. The next prime is 28317880039. The reversal of 28317880037 is 73008871382.

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., 20853092836 + 7464787201 = 144406^2 + 86399^2 .

It is a cyclic number.

It is not a de Polignac number, because 28317880037 - 2⁴ = 28317880021 is a prime.

Together with 28317880039, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28317879973 and 28317880000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28317880039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14158940018 + 14158940019.

It is an arithmetic number, because the mean of its divisors is an integer number (14158940019).

Almost surely, 2^28317880037 is an apocalyptic number.

It is an amenable number.

28317880037 is a deficient number, since it is larger than the sum of its proper divisors (1).

28317880037 is an equidigital number, since it uses as much as digits as its factorization.

28317880037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 451584, while the sum is 47.

The spelling of 28317880037 in words is "twenty-eight billion, three hundred seventeen million, eight hundred eighty thousand, thirty-seven".