3806810412021 has 32 divisors (see below), whose sum is σ = 5758178267520. Its totient is φ = 2485108184832.

The previous prime is 3806810411959. The next prime is 3806810412043. The reversal of 3806810412021 is 1202140186083.

3806810412021 is a `hidden beast` number, since 380 + 68 + 10 + 4 + 1 + 202 + 1 = 666.

It is not a de Polignac number, because 3806810412021 - 2¹¹ = 3806810409973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3806810412221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7263186 + ... + 7769651.

It is an arithmetic number, because the mean of its divisors is an integer number (179943070860).

Almost surely, 2^{3806810412021} is an apocalyptic number.

It is an amenable number.

3806810412021 is a deficient number, since it is larger than the sum of its proper divisors (1951367855499).

3806810412021 is a wasteful number, since it uses less digits than its factorization.

3806810412021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15033042 (or 15033036 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 3806810412021 in words is "three trillion, eight hundred six billion, eight hundred ten million, four hundred twelve thousand, twenty-one".