999963849601 has 8 divisors (see below), whose sum is σ = 1000762473600. Its totient is φ = 999165531840.

The previous prime is 999963849587. The next prime is 999963849617. The reversal of 999963849601 is 106948369999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 999963849601 - 2⁵ = 999963849569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999963849641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6693561 + ... + 6841321.

It is an arithmetic number, because the mean of its divisors is an integer number (125095309200).

Almost surely, 2^999963849601 is an apocalyptic number.

It is an amenable number.

999963849601 is a deficient number, since it is larger than the sum of its proper divisors (798623999).

999963849601 is a wasteful number, since it uses less digits than its factorization.

999963849601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153119.

The product of its (nonzero) digits is 204073344, while the sum is 73.

The spelling of 999963849601 in words is "nine hundred ninety-nine billion, nine hundred sixty-three million, eight hundred forty-nine thousand, six hundred one".