3618945744 has 20 divisors (see below), whose sum is σ = 9348943296. Its totient is φ = 1206315232.

The previous prime is 3618945721. The next prime is 3618945749. The reversal of 3618945744 is 4475498163.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3618945749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37697304 + ... + 37697399.

Almost surely, 2^3618945744 is an apocalyptic number.

It is an amenable number.

3618945744 is an abundant number, since it is smaller than the sum of its proper divisors (5729997552).

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

3618945744 is a wasteful number, since it uses less digits than its factorization.

3618945744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75394714 (or 75394708 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The square root of 3618945744 is about 60157.6740241841. The cubic root of 3618945744 is about 1535.3027366411.

The spelling of 3618945744 in words is "three billion, six hundred eighteen million, nine hundred forty-five thousand, seven hundred forty-four".