3686451732 has 36 divisors (see below), whose sum is σ = 9320851540. Its totient is φ = 1228511232.

The previous prime is 3686451701. The next prime is 3686451739. The reversal of 3686451732 is 2371546863.

It can be written as a sum of positive squares in 2 ways, for example, as 1005904656 + 2680547076 = 31716^2 + 51774^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3686451739) 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 in 11 ways as a sum of consecutive naturals, for example, 169494 + ... + 190002.

Almost surely, 2^3686451732 is an apocalyptic number.

It is an amenable number.

3686451732 is an abundant number, since it is smaller than the sum of its proper divisors (5634399808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3686451732 is a wasteful number, since it uses less digits than its factorization.

3686451732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25512 (or 25507 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 3686451732 is about 60716.1570918318. The cubic root of 3686451732 is about 1544.7902414198.

The spelling of 3686451732 in words is "three billion, six hundred eighty-six million, four hundred fifty-one thousand, seven hundred thirty-two".