809608008031 has 2 divisors, whose sum is σ = 809608008032. Its totient is φ = 809608008030.

The previous prime is 809608007969. The next prime is 809608008049. The reversal of 809608008031 is 130800806908.

It is a happy number.

809608008031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 809608008031 - 2⁷ = 809608007903 is a prime.

It is a super-2 number, since 2×809608008031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (809608008091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404804004015 + 404804004016.

It is an arithmetic number, because the mean of its divisors is an integer number (404804004016).

Almost surely, 2^809608008031 is an apocalyptic number.

809608008031 is a deficient number, since it is larger than the sum of its proper divisors (1).

809608008031 is an equidigital number, since it uses as much as digits as its factorization.

809608008031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 43.

The spelling of 809608008031 in words is "eight hundred nine billion, six hundred eight million, eight thousand, thirty-one".