3544943868 has 72 divisors (see below), whose sum is σ = 9267754496. Its totient is φ = 1141322400.

The previous prime is 3544943821. The next prime is 3544943873. The reversal of 3544943868 is 8683494453.

3544943868 is a `hidden beast` number, since 3 + 544 + 9 + 4 + 38 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 634455 + ... + 640017.

Almost surely, 2^3544943868 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 3544943868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4633877248).

3544943868 is an abundant number, since it is smaller than the sum of its proper divisors (5722810628).

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

3544943868 is a wasteful number, since it uses less digits than its factorization.

3544943868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6175 (or 6170 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The square root of 3544943868 is about 59539.4312031951. The cubic root of 3544943868 is about 1524.7657249004.

The spelling of 3544943868 in words is "three billion, five hundred forty-four million, nine hundred forty-three thousand, eight hundred sixty-eight".