3715681616 has 20 divisors (see below), whose sum is σ = 7235683092. Its totient is φ = 1848408576.

The previous prime is 3715681609. The next prime is 3715681631. The reversal of 3715681616 is 6161865173.

It can be written as a sum of positive squares in 2 ways, for example, as 2026800400 + 1688881216 = 45020^2 + 41096^2 .

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 3 ways as a sum of consecutive naturals, for example, 586265 + ... + 592568.

Almost surely, 2^3715681616 is an apocalyptic number.

It is an amenable number.

3715681616 is a deficient number, since it is larger than the sum of its proper divisors (3520001476).

3715681616 is a wasteful number, since it uses less digits than its factorization.

3715681616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179038 (or 1179032 counting only the distinct ones).

The product of its digits is 181440, while the sum is 44.

The square root of 3715681616 is about 60956.3911005237. The cubic root of 3715681616 is about 1548.8623794010.

The spelling of 3715681616 in words is "three billion, seven hundred fifteen million, six hundred eighty-one thousand, six hundred sixteen".