42944797219984 has 135 divisors (see below), whose sum is σ = 97164729309963. Its totient is φ = 18370008729600.

The previous prime is 42944797219927. The next prime is 42944797219993. The reversal of 42944797219984 is 48991279744924.

The square root of 42944797219984 is 6553228.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1726753683600 + 41218043536384 = 1314060^2 + 6420128^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4901810164 + ... + 4901818924.

Almost surely, 2^{42944797219984} is an apocalyptic number.

42944797219984 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

42944797219984 is the 6553228-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42944797219984

42944797219984 is an abundant number, since it is smaller than the sum of its proper divisors (54219932089979).

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

42944797219984 is an frugal number, since it uses more digits than its factorization.

42944797219984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17586 (or 8791 counting only the distinct ones).

The product of its digits is 2633637888, while the sum is 79.

The spelling of 42944797219984 in words is "forty-two trillion, nine hundred forty-four billion, seven hundred ninety-seven million, two hundred nineteen thousand, nine hundred eighty-four".