996456473549 has 8 divisors (see below), whose sum is σ = 1010510862912. Its totient is φ = 982402634080.

The previous prime is 996456473533. The next prime is 996456473581. The reversal of 996456473549 is 945374654699.

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 996456473549 - 2⁴ = 996456473533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996456473149) 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 in 7 ways as a sum of consecutive naturals, for example, 4707617 + ... + 4914729.

It is an arithmetic number, because the mean of its divisors is an integer number (126313857864).

Almost surely, 2^996456473549 is an apocalyptic number.

It is an amenable number.

996456473549 is a deficient number, since it is larger than the sum of its proper divisors (14054389363).

996456473549 is a wasteful number, since it uses less digits than its factorization.

996456473549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274947.

The product of its digits is 881798400, while the sum is 71.

The spelling of 996456473549 in words is "nine hundred ninety-six billion, four hundred fifty-six million, four hundred seventy-three thousand, five hundred forty-nine".