3853941681 has 16 divisors (see below), whose sum is σ = 5164646400. Its totient is φ = 2556285648.

The previous prime is 3853941671. The next prime is 3853941683. The reversal of 3853941681 is 1861493583.

It is not a de Polignac number, because 3853941681 - 2⁵ = 3853941649 is a prime.

It is a super-2 number, since 2×3853941681² = 29705732961098211522, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3853941681.

It is not an unprimeable number, because it can be changed into a prime (3853941683) 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, 1337200 + ... + 1340078.

It is an arithmetic number, because the mean of its divisors is an integer number (322790400).

Almost surely, 2^3853941681 is an apocalyptic number.

It is an amenable number.

3853941681 is a deficient number, since it is larger than the sum of its proper divisors (1310704719).

3853941681 is a wasteful number, since it uses less digits than its factorization.

3853941681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988.

The product of its digits is 622080, while the sum is 48.

The square root of 3853941681 is about 62080.1230749424. The cubic root of 3853941681 is about 1567.8399007510.

The spelling of 3853941681 in words is "three billion, eight hundred fifty-three million, nine hundred forty-one thousand, six hundred eighty-one".