445301781811 has 2 divisors, whose sum is σ = 445301781812. Its totient is φ = 445301781810.

The previous prime is 445301781809. The next prime is 445301781863. The reversal of 445301781811 is 118187103544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445301781811 - 2¹ = 445301781809 is a prime.

Together with 445301781809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (445301881811) 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, 222650890905 + 222650890906.

It is an arithmetic number, because the mean of its divisors is an integer number (222650890906).

Almost surely, 2^445301781811 is an apocalyptic number.

445301781811 is a deficient number, since it is larger than the sum of its proper divisors (1).

445301781811 is an equidigital number, since it uses as much as digits as its factorization.

445301781811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 445301781811 in words is "four hundred forty-five billion, three hundred one million, seven hundred eighty-one thousand, eight hundred eleven".