3616521878 has 16 divisors (see below), whose sum is σ = 5545981440. Its totient is φ = 1767941736.

The previous prime is 3616521869. The next prime is 3616521929. The reversal of 3616521878 is 8781256163.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72833 + ... + 111971.

It is an arithmetic number, because the mean of its divisors is an integer number (346623840).

Almost surely, 2^3616521878 is an apocalyptic number.

3616521878 is a deficient number, since it is larger than the sum of its proper divisors (1929459562).

3616521878 is a wasteful number, since it uses less digits than its factorization.

3616521878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40171.

The product of its digits is 483840, while the sum is 47.

The square root of 3616521878 is about 60137.5247079558. The cubic root of 3616521878 is about 1534.9598928502.

The spelling of 3616521878 in words is "three billion, six hundred sixteen million, five hundred twenty-one thousand, eight hundred seventy-eight".