445717864285081 has 4 divisors (see below), whose sum is σ = 449883451801872. Its totient is φ = 441552276768292.

The previous prime is 445717864285073. The next prime is 445717864285103. The reversal of 445717864285081 is 180582468717544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445717864285081 - 2³ = 445717864285073 is a prime.

It is a super-2 number, since 2×445717864285081² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 445717864285081.

It is not an unprimeable number, because it can be changed into a prime (445717864282081) 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 in 3 ways as a sum of consecutive naturals, for example, 2082793758235 + ... + 2082793758448.

It is an arithmetic number, because the mean of its divisors is an integer number (112470862950468).

Almost surely, 2^{445717864285081} is an apocalyptic number.

It is an amenable number.

445717864285081 is a deficient number, since it is larger than the sum of its proper divisors (4165587516791).

445717864285081 is a wasteful number, since it uses less digits than its factorization.

445717864285081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4165587516790.

The product of its (nonzero) digits is 481689600, while the sum is 70.

The spelling of 445717864285081 in words is "four hundred forty-five trillion, seven hundred seventeen billion, eight hundred sixty-four million, two hundred eighty-five thousand, eighty-one".