3806807681466 has 24 divisors (see below), whose sum is σ = 8248630961844. Its totient is φ = 1268851639680.

The previous prime is 3806807681449. The next prime is 3806807681491. The reversal of 3806807681466 is 6641867086083.

3806807681466 is a `hidden beast` number, since 38 + 0 + 6 + 80 + 7 + 68 + 1 + 466 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3645789266025 + 161018415441 = 1909395^2 + 401271^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6742255 + ... + 7285026.

Almost surely, 2^{3806807681466} is an apocalyptic number.

3806807681466 is an abundant number, since it is smaller than the sum of its proper divisors (4441823280378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3806807681466 is a wasteful number, since it uses less digits than its factorization.

3806807681466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14042366 (or 14042363 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 3806807681466 in words is "three trillion, eight hundred six billion, eight hundred seven million, six hundred eighty-one thousand, four hundred sixty-six".