3806481831265 has 16 divisors (see below), whose sum is σ = 4769362061568. Its totient is φ = 2910962045376.

The previous prime is 3806481831259. The next prime is 3806481831281. The reversal of 3806481831265 is 5621381846083.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3806481831265 - 2²³ = 3806473442657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10179477 + ... + 10546786.

It is an arithmetic number, because the mean of its divisors is an integer number (298085128848).

Almost surely, 2^{3806481831265} is an apocalyptic number.

It is an amenable number.

3806481831265 is a deficient number, since it is larger than the sum of its proper divisors (962880230303).

3806481831265 is a wasteful number, since it uses less digits than its factorization.

3806481831265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20727888.

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 3806481831265 in words is "three trillion, eight hundred six billion, four hundred eighty-one million, eight hundred thirty-one thousand, two hundred sixty-five".