999863941200937 has 4 divisors (see below), whose sum is σ = 999864020252500. Its totient is φ = 999863862149376.

The previous prime is 999863941200853. The next prime is 999863941200959. The reversal of 999863941200937 is 739002149368999.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 372493898610201 + 627370042590736 = 19300101^2 + 25047356^2 .

It is a 3-Lehmer number, since φ(999863941200937) divides (999863941200937-1)³.

It is a cyclic number.

It is not a de Polignac number, because 999863941200937 - 2³¹ = 999861793717289 is a prime.

It is a deceptive number, since it divides R_{999863941200936}.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999863941200737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15810312 + ... + 47430937.

It is an arithmetic number, because the mean of its divisors is an integer number (249966005063125).

It is a Poulet number, since it divides 2^{999863941200936}-1.

Almost surely, 2^{999863941200937} is an apocalyptic number.

999863941200937 is the 15810313-rd decagonal number.

It is an amenable number.

999863941200937 is a deficient number, since it is larger than the sum of its proper divisors (79051563).

999863941200937 is a wasteful number, since it uses less digits than its factorization.

999863941200937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79051562.

The product of its (nonzero) digits is 1428513408, while the sum is 79.

The spelling of 999863941200937 in words is "nine hundred ninety-nine trillion, eight hundred sixty-three billion, nine hundred forty-one million, two hundred thousand, nine hundred thirty-seven".