4242644462393 has 2 divisors, whose sum is σ = 4242644462394. Its totient is φ = 4242644462392.

The previous prime is 4242644462339. The next prime is 4242644462467. The reversal of 4242644462393 is 3932644462424.

It is a happy number.

Together with previous prime (4242644462339) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4177396401424 + 65248060969 = 2043868^2 + 255437^2 .

It is a cyclic number.

It is not a de Polignac number, because 4242644462393 - 2¹⁶ = 4242644396857 is a prime.

It is not a weakly prime, because it can be changed into another prime (4242644462993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121322231196 + 2121322231197.

It is an arithmetic number, because the mean of its divisors is an integer number (2121322231197).

Almost surely, 2^{4242644462393} is an apocalyptic number.

It is an amenable number.

4242644462393 is a deficient number, since it is larger than the sum of its proper divisors (1).

4242644462393 is an equidigital number, since it uses as much as digits as its factorization.

4242644462393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23887872, while the sum is 53.

The spelling of 4242644462393 in words is "four trillion, two hundred forty-two billion, six hundred forty-four million, four hundred sixty-two thousand, three hundred ninety-three".