996871999853 has 2 divisors, whose sum is σ = 996871999854. Its totient is φ = 996871999852.

The previous prime is 996871999847. The next prime is 996872000023. The reversal of 996871999853 is 358999178699.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 783504684964 + 213367314889 = 885158^2 + 461917^2 .

It is a cyclic number.

It is not a de Polignac number, because 996871999853 - 2¹⁸ = 996871737709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996871999813) 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, 498435999926 + 498435999927.

It is an arithmetic number, because the mean of its divisors is an integer number (498435999927).

Almost surely, 2^996871999853 is an apocalyptic number.

It is an amenable number.

996871999853 is a deficient number, since it is larger than the sum of its proper divisors (1).

996871999853 is an equidigital number, since it uses as much as digits as its factorization.

996871999853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2380855680, while the sum is 83.

The spelling of 996871999853 in words is "nine hundred ninety-six billion, eight hundred seventy-one million, nine hundred ninety-nine thousand, eight hundred fifty-three".