443747142148668 has 24 divisors (see below), whose sum is σ = 1038482431585872. Its totient is φ = 147476795015424.

The previous prime is 443747142148663. The next prime is 443747142148669. The reversal of 443747142148668 is 866841241747344.

It is a super-2 number, since 2×443747142148668² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443747142148663) 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, 54864875055 + ... + 54864883142.

It is an arithmetic number, because the mean of its divisors is an integer number (43270101316078).

Almost surely, 2^{443747142148668} is an apocalyptic number.

It is an amenable number.

443747142148668 is an abundant number, since it is smaller than the sum of its proper divisors (594735289437204).

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

443747142148668 is a wasteful number, since it uses less digits than its factorization.

443747142148668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109729758541 (or 109729758539 counting only the distinct ones).

The product of its digits is 693633024, while the sum is 69.

The spelling of 443747142148668 in words is "four hundred forty-three trillion, seven hundred forty-seven billion, one hundred forty-two million, one hundred forty-eight thousand, six hundred sixty-eight".