444217747864 has 32 divisors (see below), whose sum is σ = 908653107600. Its totient is φ = 201911403520.

The previous prime is 444217747847. The next prime is 444217747973. The reversal of 444217747864 is 468747712444.

It is a junction number, because it is equal to n+sod(n) for n = 444217747799 and 444217747808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5299044 + ... + 5382220.

Almost surely, 2^444217747864 is an apocalyptic number.

444217747864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

444217747864 is an abundant number, since it is smaller than the sum of its proper divisors (464435359736).

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

444217747864 is a wasteful number, since it uses less digits than its factorization.

444217747864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143883 (or 143879 counting only the distinct ones).

The product of its digits is 33718272, while the sum is 58.

The spelling of 444217747864 in words is "four hundred forty-four billion, two hundred seventeen million, seven hundred forty-seven thousand, eight hundred sixty-four".