445398479797944 has 128 divisors (see below), whose sum is σ = 1150101770976000. Its totient is φ = 143662626432000.

The previous prime is 445398479797913. The next prime is 445398479797961. The reversal of 445398479797944 is 449797974893544.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2158891707 + ... + 2159098005.

It is an arithmetic number, because the mean of its divisors is an integer number (8985170085750).

Almost surely, 2^{445398479797944} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445398479797944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (575050885488000).

445398479797944 is an abundant number, since it is smaller than the sum of its proper divisors (704703291178056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445398479797944 is a wasteful number, since it uses less digits than its factorization.

445398479797944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229685 (or 229681 counting only the distinct ones).

The product of its digits is 276531978240, while the sum is 93.

The spelling of 445398479797944 in words is "four hundred forty-five trillion, three hundred ninety-eight billion, four hundred seventy-nine million, seven hundred ninety-seven thousand, nine hundred forty-four".