3648128245 has 8 divisors (see below), whose sum is σ = 4426942680. Its totient is φ = 2885710080.

The previous prime is 3648128173. The next prime is 3648128249. The reversal of 3648128245 is 5428218463.

It is a happy number.

3648128245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 184334929 + 3463793316 = 13577^2 + 58854^2 .

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

It is not a de Polignac number, because 3648128245 - 2¹¹ = 3648126197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648128249) 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, 4098576 + ... + 4099465.

It is an arithmetic number, because the mean of its divisors is an integer number (553367835).

Almost surely, 2^3648128245 is an apocalyptic number.

It is an amenable number.

3648128245 is a deficient number, since it is larger than the sum of its proper divisors (778814435).

3648128245 is an equidigital number, since it uses as much as digits as its factorization.

3648128245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8198135.

The product of its digits is 368640, while the sum is 43.

The square root of 3648128245 is about 60399.7371269114. The cubic root of 3648128245 is about 1539.4184914451.

The spelling of 3648128245 in words is "three billion, six hundred forty-eight million, one hundred twenty-eight thousand, two hundred forty-five".