3681695679 has 8 divisors (see below), whose sum is σ = 4916034432. Its totient is φ = 2450910360.

The previous prime is 3681695659. The next prime is 3681695711. The reversal of 3681695679 is 9765961863.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3681695679 - 2²⁷ = 3547477951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681695659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885939 + ... + 890084.

It is an arithmetic number, because the mean of its divisors is an integer number (614504304).

Almost surely, 2^3681695679 is an apocalyptic number.

3681695679 is a deficient number, since it is larger than the sum of its proper divisors (1234338753).

3681695679 is a wasteful number, since it uses less digits than its factorization.

3681695679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776717.

The product of its digits is 14696640, while the sum is 60.

The square root of 3681695679 is about 60676.9781630562. The cubic root of 3681695679 is about 1544.1256216472.

The spelling of 3681695679 in words is "three billion, six hundred eighty-one million, six hundred ninety-five thousand, six hundred seventy-nine".