8402536351987 has 2 divisors, whose sum is σ = 8402536351988. Its totient is φ = 8402536351986.

The previous prime is 8402536351981. The next prime is 8402536352083. The reversal of 8402536351987 is 7891536352048.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8402536351987 is a prime.

It is not a weakly prime, because it can be changed into another prime (8402536351981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4201268175993 + 4201268175994.

It is an arithmetic number, because the mean of its divisors is an integer number (4201268175994).

It is a 2-persistent number, because it is pandigital, and so is 2⋅8402536351987 = 16805072703974, but 3⋅8402536351987 = 25207609055961 is not.

Almost surely, 2^{8402536351987} is an apocalyptic number.

8402536351987 is a deficient number, since it is larger than the sum of its proper divisors (1).

8402536351987 is an equidigital number, since it uses as much as digits as its factorization.

8402536351987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43545600, while the sum is 61.

Adding to 8402536351987 its sum of digits (61), we get a palindrome (8402536352048).

The spelling of 8402536351987 in words is "eight trillion, four hundred two billion, five hundred thirty-six million, three hundred fifty-one thousand, nine hundred eighty-seven".