445066243751721 has 8 divisors (see below), whose sum is σ = 628328814708384. Its totient is φ = 279257250981440.

The previous prime is 445066243751573. The next prime is 445066243751743. The reversal of 445066243751721 is 127157342660544.

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

It is a cyclic number.

It is not a de Polignac number, because 445066243751721 - 2⁴³ = 436270150729513 is a prime.

It is a super-2 number, since 2×445066243751721² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (445066243751791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4363394546535 + ... + 4363394546636.

It is an arithmetic number, because the mean of its divisors is an integer number (78541101838548).

Almost surely, 2^{445066243751721} is an apocalyptic number.

It is an amenable number.

445066243751721 is a deficient number, since it is larger than the sum of its proper divisors (183262570956663).

445066243751721 is a wasteful number, since it uses less digits than its factorization.

445066243751721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8726789093191.

The product of its (nonzero) digits is 33868800, while the sum is 57.

The spelling of 445066243751721 in words is "four hundred forty-five trillion, sixty-six billion, two hundred forty-three million, seven hundred fifty-one thousand, seven hundred twenty-one".