3645172228548 has 24 divisors (see below), whose sum is σ = 8600968182240. Its totient is φ = 1201405078720.

The previous prime is 3645172228547. The next prime is 3645172228591. The reversal of 3645172228548 is 8458222715463.

It is not an unprimeable number, because it can be changed into a prime (3645172228547) 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 7 ways as a sum of consecutive naturals, for example, 1706540238 + ... + 1706542373.

It is an arithmetic number, because the mean of its divisors is an integer number (358373674260).

Almost surely, 2^{3645172228548} is an apocalyptic number.

It is an amenable number.

3645172228548 is an abundant number, since it is smaller than the sum of its proper divisors (4955795953692).

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

3645172228548 is a wasteful number, since it uses less digits than its factorization.

3645172228548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3413082707 (or 3413082705 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 57.

The spelling of 3645172228548 in words is "three trillion, six hundred forty-five billion, one hundred seventy-two million, two hundred twenty-eight thousand, five hundred forty-eight".