3645378461675 has 24 divisors (see below), whose sum is σ = 4879451132640. Its totient is φ = 2693317088000.

The previous prime is 3645378461671. The next prime is 3645378461701. The reversal of 3645378461675 is 5761648735463.

It is not a de Polignac number, because 3645378461675 - 2² = 3645378461671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3645378461671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109290026 + ... + 109323375.

It is an arithmetic number, because the mean of its divisors is an integer number (203310463860).

Almost surely, 2^{3645378461675} is an apocalyptic number.

3645378461675 is a deficient number, since it is larger than the sum of its proper divisors (1234072670965).

3645378461675 is a wasteful number, since it uses less digits than its factorization.

3645378461675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218613463 (or 218613458 counting only the distinct ones).

The product of its digits is 304819200, while the sum is 65.

The spelling of 3645378461675 in words is "three trillion, six hundred forty-five billion, three hundred seventy-eight million, four hundred sixty-one thousand, six hundred seventy-five".