3642555128 has 16 divisors (see below), whose sum is σ = 6996371760. Its totient is φ = 1776856000.

The previous prime is 3642555083. The next prime is 3642555143. The reversal of 3642555128 is 8215552463.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5552348 + ... + 5553003.

It is an arithmetic number, because the mean of its divisors is an integer number (437273235).

Almost surely, 2^3642555128 is an apocalyptic number.

It is an amenable number.

3642555128 is a deficient number, since it is larger than the sum of its proper divisors (3353816632).

3642555128 is a wasteful number, since it uses less digits than its factorization.

3642555128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105398 (or 11105394 counting only the distinct ones).

The product of its digits is 288000, while the sum is 41.

The square root of 3642555128 is about 60353.5842183379. The cubic root of 3642555128 is about 1538.6341867921.

The spelling of 3642555128 in words is "three billion, six hundred forty-two million, five hundred fifty-five thousand, one hundred twenty-eight".