806800693631 has 2 divisors, whose sum is σ = 806800693632. Its totient is φ = 806800693630.

The previous prime is 806800693613. The next prime is 806800693691. The reversal of 806800693631 is 136396008608.

Together with previous prime (806800693613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 806800693631 - 2³⁰ = 805726951807 is a prime.

It is a super-3 number, since 3×806800693631³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 806800693631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806800693691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403400346815 + 403400346816.

It is an arithmetic number, because the mean of its divisors is an integer number (403400346816).

Almost surely, 2^806800693631 is an apocalyptic number.

806800693631 is a deficient number, since it is larger than the sum of its proper divisors (1).

806800693631 is an equidigital number, since it uses as much as digits as its factorization.

806800693631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 806800693631 in words is "eight hundred six billion, eight hundred million, six hundred ninety-three thousand, six hundred thirty-one".