996421524871 has 8 divisors (see below), whose sum is σ = 1023366693024. Its totient is φ = 969477138720.

The previous prime is 996421524809. The next prime is 996421524887. The reversal of 996421524871 is 178425124699.

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 996421524871 - 2⁹ = 996421524359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996421564871) 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, 3151806 + ... + 3453508.

It is an arithmetic number, because the mean of its divisors is an integer number (127920836628).

Almost surely, 2^996421524871 is an apocalyptic number.

996421524871 is a deficient number, since it is larger than the sum of its proper divisors (26945168153).

996421524871 is a wasteful number, since it uses less digits than its factorization.

996421524871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391001.

The product of its digits is 8709120, while the sum is 58.

The spelling of 996421524871 in words is "nine hundred ninety-six billion, four hundred twenty-one million, five hundred twenty-four thousand, eight hundred seventy-one".