3836911681 has 12 divisors (see below), whose sum is σ = 4035897792. Its totient is φ = 3640839048.

The previous prime is 3836911669. The next prime is 3836911691. The reversal of 3836911681 is 1861196383.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-3836911681 is a prime.

It is a super-2 number, since 2×3836911681² = 29443782495588491522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3836911691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365796 + ... + 376138.

It is an arithmetic number, because the mean of its divisors is an integer number (336324816).

Almost surely, 2^3836911681 is an apocalyptic number.

It is an amenable number.

3836911681 is a deficient number, since it is larger than the sum of its proper divisors (198986111).

3836911681 is a wasteful number, since it uses less digits than its factorization.

3836911681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10620 (or 10493 counting only the distinct ones).

The product of its digits is 186624, while the sum is 46.

The square root of 3836911681 is about 61942.8097602942. The cubic root of 3836911681 is about 1565.5271397040.

The spelling of 3836911681 in words is "three billion, eight hundred thirty-six million, nine hundred eleven thousand, six hundred eighty-one".