3847165164261 has 24 divisors (see below), whose sum is σ = 5679403202304. Its totient is φ = 2508370391520.

The previous prime is 3847165164259. The next prime is 3847165164317. The reversal of 3847165164261 is 1624615617483.

3847165164261 is a `hidden beast` number, since 3 + 8 + 47 + 165 + 16 + 426 + 1 = 666.

It is not a de Polignac number, because 3847165164261 - 2¹ = 3847165164259 is a prime.

It is a super-2 number, since 2×3847165164261² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3847165164198 and 3847165164207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3847165164461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2748370 + ... + 3904851.

It is an arithmetic number, because the mean of its divisors is an integer number (236641800096).

Almost surely, 2^{3847165164261} is an apocalyptic number.

It is an amenable number.

3847165164261 is a deficient number, since it is larger than the sum of its proper divisors (1832238038043).

3847165164261 is a wasteful number, since it uses less digits than its factorization.

3847165164261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6654641 (or 6654638 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 3847165164261 in words is "three trillion, eight hundred forty-seven billion, one hundred sixty-five million, one hundred sixty-four thousand, two hundred sixty-one".