442403520157453 has 2 divisors, whose sum is σ = 442403520157454. Its totient is φ = 442403520157452.

The previous prime is 442403520157451. The next prime is 442403520157471. The reversal of 442403520157453 is 354751025304244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346425975200484 + 95977544956969 = 18612522^2 + 9796813^2 .

It is a cyclic number.

It is not a de Polignac number, because 442403520157453 - 2¹ = 442403520157451 is a prime.

It is a super-2 number, since 2×442403520157453² (a number of 30 digits) contains 22 as substring.

Together with 442403520157451, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 442403520157397 and 442403520157406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442403520157451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221201760078726 + 221201760078727.

It is an arithmetic number, because the mean of its divisors is an integer number (221201760078727).

Almost surely, 2^{442403520157453} is an apocalyptic number.

It is an amenable number.

442403520157453 is a deficient number, since it is larger than the sum of its proper divisors (1).

442403520157453 is an equidigital number, since it uses as much as digits as its factorization.

442403520157453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064000, while the sum is 49.

The spelling of 442403520157453 in words is "four hundred forty-two trillion, four hundred three billion, five hundred twenty million, one hundred fifty-seven thousand, four hundred fifty-three".