3721745744 has 10 divisors (see below), whose sum is σ = 7210882410. Its totient is φ = 1860872864.

The previous prime is 3721745743. The next prime is 3721745747. The reversal of 3721745744 is 4475471273.

It can be written as a sum of positive squares in only one way, i.e., 3631267600 + 90478144 = 60260^2 + 9512^2 .

It is a super-2 number, since 2×3721745744² = 27702782765964227072, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 3721745695 and 3721745704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721745743) by changing a digit.

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 as a sum of consecutive naturals, namely, 116304539 + ... + 116304570.

It is an arithmetic number, because the mean of its divisors is an integer number (721088241).

Almost surely, 2^3721745744 is an apocalyptic number.

It is an amenable number.

3721745744 is a deficient number, since it is larger than the sum of its proper divisors (3489136666).

3721745744 is a wasteful number, since it uses less digits than its factorization.

3721745744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232609117 (or 232609111 counting only the distinct ones).

The product of its digits is 658560, while the sum is 44.

The square root of 3721745744 is about 61006.1123495015. The cubic root of 3721745744 is about 1549.7045214076.

The spelling of 3721745744 in words is "three billion, seven hundred twenty-one million, seven hundred forty-five thousand, seven hundred forty-four".