445431338730842 has 8 divisors (see below), whose sum is σ = 680753555418996. Its totient is φ = 218513486924512.

The previous prime is 445431338730797. The next prime is 445431338730857. The reversal of 445431338730842 is 248037833134544.

It can be written as a sum of positive squares in 2 ways, for example, as 445125561804001 + 305776926841 = 21097999^2 + 552971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 2101091220323 + ... + 2101091220534.

Almost surely, 2^{445431338730842} is an apocalyptic number.

445431338730842 is a deficient number, since it is larger than the sum of its proper divisors (235322216688154).

445431338730842 is a wasteful number, since it uses less digits than its factorization.

445431338730842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202182440912.

The product of its (nonzero) digits is 92897280, while the sum is 59.

The spelling of 445431338730842 in words is "four hundred forty-five trillion, four hundred thirty-one billion, three hundred thirty-eight million, seven hundred thirty thousand, eight hundred forty-two".