442344412542493 has 2 divisors, whose sum is σ = 442344412542494. Its totient is φ = 442344412542492.

The previous prime is 442344412542469. The next prime is 442344412542511. The reversal of 442344412542493 is 394245214443244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 389463199371684 + 52881213170809 = 19734822^2 + 7271947^2 .

It is a cyclic number.

It is not a de Polignac number, because 442344412542493 - 2²¹ = 442344410445341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442344412543493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221172206271246 + 221172206271247.

It is an arithmetic number, because the mean of its divisors is an integer number (221172206271247).

Almost surely, 2^{442344412542493} is an apocalyptic number.

It is an amenable number.

442344412542493 is a deficient number, since it is larger than the sum of its proper divisors (1).

442344412542493 is an equidigital number, since it uses as much as digits as its factorization.

442344412542493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53084160, while the sum is 55.

The spelling of 442344412542493 in words is "four hundred forty-two trillion, three hundred forty-four billion, four hundred twelve million, five hundred forty-two thousand, four hundred ninety-three".