4221646431268 has 96 divisors (see below), whose sum is σ = 8588629131264. Its totient is φ = 1778442369408.

The previous prime is 4221646431257. The next prime is 4221646431281. The reversal of 4221646431268 is 8621346461224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223157346 + ... + 223176262.

It is an arithmetic number, because the mean of its divisors is an integer number (89464886784).

Almost surely, 2^{4221646431268} is an apocalyptic number.

It is an amenable number.

4221646431268 is an abundant number, since it is smaller than the sum of its proper divisors (4366982699996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221646431268 is a wasteful number, since it uses less digits than its factorization.

4221646431268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19601 (or 19599 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 49.

The spelling of 4221646431268 in words is "four trillion, two hundred twenty-one billion, six hundred forty-six million, four hundred thirty-one thousand, two hundred sixty-eight".