4221646431277 has 4 divisors (see below), whose sum is σ = 4605432470496. Its totient is φ = 3837860392060.

The previous prime is 4221646431257. The next prime is 4221646431281. The reversal of 4221646431277 is 7721346461224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221646431277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4221646431277.

It is a congruent 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, 191893019593 + ... + 191893019614.

It is an arithmetic number, because the mean of its divisors is an integer number (1151358117624).

Almost surely, 2^{4221646431277} is an apocalyptic number.

It is an amenable number.

4221646431277 is a deficient number, since it is larger than the sum of its proper divisors (383786039219).

4221646431277 is a wasteful number, since it uses less digits than its factorization.

4221646431277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383786039218.

The product of its digits is 2709504, while the sum is 49.

The spelling of 4221646431277 in words is "four trillion, two hundred twenty-one billion, six hundred forty-six million, four hundred thirty-one thousand, two hundred seventy-seven".