4221646431267 has 4 divisors (see below), whose sum is σ = 5628861908360. Its totient is φ = 2814430954176.

The previous prime is 4221646431257. The next prime is 4221646431281. The reversal of 4221646431267 is 7621346461224.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4221646431267 - 2⁷ = 4221646431139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221646431257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703607738542 + ... + 703607738547.

It is an arithmetic number, because the mean of its divisors is an integer number (1407215477090).

Almost surely, 2^{4221646431267} is an apocalyptic number.

4221646431267 is a deficient number, since it is larger than the sum of its proper divisors (1407215477093).

4221646431267 is a wasteful number, since it uses less digits than its factorization.

4221646431267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407215477092.

The product of its digits is 2322432, while the sum is 48.

The spelling of 4221646431267 in words is "four trillion, two hundred twenty-one billion, six hundred forty-six million, four hundred thirty-one thousand, two hundred sixty-seven".