3645228331245 has 16 divisors (see below), whose sum is σ = 6085946431872. Its totient is φ = 1859594742720.

The previous prime is 3645228331237. The next prime is 3645228331259. The reversal of 3645228331245 is 5421338225463.

It is not a de Polignac number, because 3645228331245 - 2³ = 3645228331237 is a prime.

It is a super-2 number, since 2×3645228331245² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3645228331194 and 3645228331203.

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 15 ways as a sum of consecutive naturals, for example, 5282939266 + ... + 5282939955.

It is an arithmetic number, because the mean of its divisors is an integer number (380371651992).

Almost surely, 2^{3645228331245} is an apocalyptic number.

It is an amenable number.

3645228331245 is a deficient number, since it is larger than the sum of its proper divisors (2440718100627).

3645228331245 is a wasteful number, since it uses less digits than its factorization.

3645228331245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10565879252.

The product of its digits is 4147200, while the sum is 48.

The spelling of 3645228331245 in words is "three trillion, six hundred forty-five billion, two hundred twenty-eight million, three hundred thirty-one thousand, two hundred forty-five".