3651872688 has 100 divisors (see below), whose sum is σ = 10602756648. Its totient is φ = 1213470720.

The previous prime is 3651872659. The next prime is 3651872711. The reversal of 3651872688 is 8862781563.

3651872688 is a `hidden beast` number, since 365 + 18 + 7 + 268 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 19 ways as a sum of consecutive naturals, for example, 424720 + ... + 433232.

Almost surely, 2^3651872688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3651872688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5301378324).

3651872688 is an abundant number, since it is smaller than the sum of its proper divisors (6950883960).

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

3651872688 is a wasteful number, since it uses less digits than its factorization.

3651872688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8864 (or 8849 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 3651872688 is about 60430.7263567136. The cubic root of 3651872688 is about 1539.9449983167.

The spelling of 3651872688 in words is "three billion, six hundred fifty-one million, eight hundred seventy-two thousand, six hundred eighty-eight".