442516624393 has 2 divisors, whose sum is σ = 442516624394. Its totient is φ = 442516624392.

The previous prime is 442516624337. The next prime is 442516624411. The reversal of 442516624393 is 393426615244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399034782864 + 43481841529 = 631692^2 + 208523^2 .

It is a cyclic number.

It is not a de Polignac number, because 442516624393 - 2²⁵ = 442483069961 is a prime.

It is not a weakly prime, because it can be changed into another prime (442516624093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221258312196 + 221258312197.

It is an arithmetic number, because the mean of its divisors is an integer number (221258312197).

Almost surely, 2^442516624393 is an apocalyptic number.

It is an amenable number.

442516624393 is a deficient number, since it is larger than the sum of its proper divisors (1).

442516624393 is an equidigital number, since it uses as much as digits as its factorization.

442516624393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 49.

The spelling of 442516624393 in words is "four hundred forty-two billion, five hundred sixteen million, six hundred twenty-four thousand, three hundred ninety-three".