28338736787 has 2 divisors, whose sum is σ = 28338736788. Its totient is φ = 28338736786.

The previous prime is 28338736669. The next prime is 28338736841. The reversal of 28338736787 is 78763783382.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28338736787 is a prime.

It is not a weakly prime, because it can be changed into another prime (28338730787) 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, 14169368393 + 14169368394.

It is an arithmetic number, because the mean of its divisors is an integer number (14169368394).

Almost surely, 2^28338736787 is an apocalyptic number.

28338736787 is a deficient number, since it is larger than the sum of its proper divisors (1).

28338736787 is an equidigital number, since it uses as much as digits as its factorization.

28338736787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56899584, while the sum is 62.

The spelling of 28338736787 in words is "twenty-eight billion, three hundred thirty-eight million, seven hundred thirty-six thousand, seven hundred eighty-seven".