442651250623 has 2 divisors, whose sum is σ = 442651250624. Its totient is φ = 442651250622.

The previous prime is 442651250609. The next prime is 442651250651. The reversal of 442651250623 is 326052156244.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442651250623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442651250653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221325625311 + 221325625312.

It is an arithmetic number, because the mean of its divisors is an integer number (221325625312).

Almost surely, 2^442651250623 is an apocalyptic number.

442651250623 is a deficient number, since it is larger than the sum of its proper divisors (1).

442651250623 is an equidigital number, since it uses as much as digits as its factorization.

442651250623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 442651250623 in words is "four hundred forty-two billion, six hundred fifty-one million, two hundred fifty thousand, six hundred twenty-three".