3661838854745 has 32 divisors (see below), whose sum is σ = 4485464916480. Its totient is φ = 2869332486400.

The previous prime is 3661838854721. The next prime is 3661838854847. The reversal of 3661838854745 is 5474588381663.

3661838854745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3661838854745 - 2³² = 3657543887449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38804039 + ... + 38898291.

It is an arithmetic number, because the mean of its divisors is an integer number (140170778640).

Almost surely, 2^{3661838854745} is an apocalyptic number.

It is an amenable number.

3661838854745 is a deficient number, since it is larger than the sum of its proper divisors (823626061735).

3661838854745 is a wasteful number, since it uses less digits than its factorization.

3661838854745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95185.

The product of its digits is 464486400, while the sum is 68.

The spelling of 3661838854745 in words is "three trillion, six hundred sixty-one billion, eight hundred thirty-eight million, eight hundred fifty-four thousand, seven hundred forty-five".