445422021650623 has 8 divisors (see below), whose sum is σ = 451700418309120. Its totient is φ = 439143759632760.

The previous prime is 445422021650609. The next prime is 445422021650629. The reversal of 445422021650623 is 326056120224544.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445422021650623 is a prime.

It is a super-2 number, since 2×445422021650623² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445422021650629) 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, 26987815 + ... + 40239112.

It is an arithmetic number, because the mean of its divisors is an integer number (56462552288640).

Almost surely, 2^{445422021650623} is an apocalyptic number.

445422021650623 is a deficient number, since it is larger than the sum of its proper divisors (6278396658497).

445422021650623 is an equidigital number, since it uses as much as digits as its factorization.

445422021650623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67320317.

The product of its (nonzero) digits is 2764800, while the sum is 46.

The spelling of 445422021650623 in words is "four hundred forty-five trillion, four hundred twenty-two billion, twenty-one million, six hundred fifty thousand, six hundred twenty-three".