3845075721911 has 16 divisors (see below), whose sum is σ = 3944941872480. Its totient is φ = 3746697292800.

The previous prime is 3845075721863. The next prime is 3845075721919. The reversal of 3845075721911 is 1191275705483.

It is a cyclic number.

It is not a de Polignac number, because 3845075721911 - 2³⁰ = 3844001980087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3845075721919) 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, 2313161 + ... + 3611213.

It is an arithmetic number, because the mean of its divisors is an integer number (246558867030).

Almost surely, 2^{3845075721911} is an apocalyptic number.

3845075721911 is a deficient number, since it is larger than the sum of its proper divisors (99866150569).

3845075721911 is a wasteful number, since it uses less digits than its factorization.

3845075721911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298626.

The product of its (nonzero) digits is 2116800, while the sum is 53.

The spelling of 3845075721911 in words is "three trillion, eight hundred forty-five billion, seventy-five million, seven hundred twenty-one thousand, nine hundred eleven".