445171213623 has 8 divisors (see below), whose sum is σ = 593704420848. Its totient is φ = 296709407744.

The previous prime is 445171213601. The next prime is 445171213631. The reversal of 445171213623 is 326312171544.

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 445171213623 - 2⁶ = 445171213559 is a prime.

It is a super-2 number, since 2×445171213623² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445171213673) 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, 17835786 + ... + 17860727.

It is an arithmetic number, because the mean of its divisors is an integer number (74213052606).

Almost surely, 2^445171213623 is an apocalyptic number.

445171213623 is a deficient number, since it is larger than the sum of its proper divisors (148533207225).

445171213623 is a wasteful number, since it uses less digits than its factorization.

445171213623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35700673.

The product of its digits is 120960, while the sum is 39.

The spelling of 445171213623 in words is "four hundred forty-five billion, one hundred seventy-one million, two hundred thirteen thousand, six hundred twenty-three".