4221434184761 has 2 divisors, whose sum is σ = 4221434184762. Its totient is φ = 4221434184760.

The previous prime is 4221434184757. The next prime is 4221434184769. The reversal of 4221434184761 is 1674814341224.

4221434184761 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2506332259600 + 1715101925161 = 1583140^2 + 1309619^2 .

It is a cyclic number.

It is not a de Polignac number, because 4221434184761 - 2² = 4221434184757 is a prime.

It is not a weakly prime, because it can be changed into another prime (4221434184769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110717092380 + 2110717092381.

It is an arithmetic number, because the mean of its divisors is an integer number (2110717092381).

Almost surely, 2^{4221434184761} is an apocalyptic number.

It is an amenable number.

4221434184761 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221434184761 is an equidigital number, since it uses as much as digits as its factorization.

4221434184761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1032192, while the sum is 47.

The spelling of 4221434184761 in words is "four trillion, two hundred twenty-one billion, four hundred thirty-four million, one hundred eighty-four thousand, seven hundred sixty-one".