3544999668 has 252 divisors, whose sum is σ = 11191386752. Its totient is φ = 980184240.

The previous prime is 3544999631. The next prime is 3544999691. The reversal of 3544999668 is 8669994453.

3544999668 is a `hidden beast` number, since 3 + 54 + 499 + 96 + 6 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (252).

It is a super-2 number, since 2×3544999668² = 25134045292240220448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 114354813 + ... + 114354843.

Almost surely, 2^3544999668 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 3544999668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5595693376).

3544999668 is an abundant number, since it is smaller than the sum of its proper divisors (7646387084).

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

3544999668 is an frugal number, since it uses more digits than its factorization.

3544999668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 43 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The square root of 3544999668 is about 59539.8997983705. The cubic root of 3544999668 is about 1524.7737251664.

The spelling of 3544999668 in words is "three billion, five hundred forty-four million, nine hundred ninety-nine thousand, six hundred sixty-eight".