806271139629 has 12 divisors (see below), whose sum is σ = 1168334683516. Its totient is φ = 535796793792.

The previous prime is 806271139613. The next prime is 806271139651. The reversal of 806271139629 is 926931172608.

806271139629 is a `hidden beast` number, since 8 + 0 + 6 + 2 + 7 + 1 + 1 + 3 + 9 + 629 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 318634283529 + 487636856100 = 564477^2 + 698310^2 .

It is not a de Polignac number, because 806271139629 - 2⁴ = 806271139613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806271139129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143105302 + ... + 143110935.

Almost surely, 2^806271139629 is an apocalyptic number.

It is an amenable number.

806271139629 is a deficient number, since it is larger than the sum of its proper divisors (362063543887).

806271139629 is a wasteful number, since it uses less digits than its factorization.

806271139629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286216556 (or 286216553 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 806271139629 in words is "eight hundred six billion, two hundred seventy-one million, one hundred thirty-nine thousand, six hundred twenty-nine".