3659812871 has 32 divisors (see below), whose sum is σ = 4375848960. Its totient is φ = 3017232000.

The previous prime is 3659812859. The next prime is 3659812901. The reversal of 3659812871 is 1782189563.

It is a cyclic number.

It is not a de Polignac number, because 3659812871 - 2²² = 3655618567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3659812811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2006666 + ... + 2008488.

It is an arithmetic number, because the mean of its divisors is an integer number (136745280).

Almost surely, 2^3659812871 is an apocalyptic number.

3659812871 is a deficient number, since it is larger than the sum of its proper divisors (716036089).

3659812871 is a wasteful number, since it uses less digits than its factorization.

3659812871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087.

The product of its digits is 725760, while the sum is 50.

The square root of 3659812871 is about 60496.3872557692. The cubic root of 3659812871 is about 1541.0602794230.

The spelling of 3659812871 in words is "three billion, six hundred fifty-nine million, eight hundred twelve thousand, eight hundred seventy-one".