3661838854743 has 16 divisors (see below), whose sum is σ = 4922186121216. Its totient is φ = 2421368822880.

The previous prime is 3661838854721. The next prime is 3661838854847. The reversal of 3661838854743 is 3474588381663.

It is not a de Polignac number, because 3661838854743 - 2¹² = 3661838850647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661838854703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198130 + ... + 2713472.

It is an arithmetic number, because the mean of its divisors is an integer number (307636632576).

Almost surely, 2^{3661838854743} is an apocalyptic number.

3661838854743 is a deficient number, since it is larger than the sum of its proper divisors (1260347266473).

3661838854743 is a wasteful number, since it uses less digits than its factorization.

3661838854743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519294.

The product of its digits is 278691840, while the sum is 66.

The spelling of 3661838854743 in words is "three trillion, six hundred sixty-one billion, eight hundred thirty-eight million, eight hundred fifty-four thousand, seven hundred forty-three".