531817000807 has 2 divisors, whose sum is σ = 531817000808. Its totient is φ = 531817000806.

The previous prime is 531817000787. The next prime is 531817000849. The reversal of 531817000807 is 708000718135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531817000807 - 2²³ = 531808612199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 531817000807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531817030807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265908500403 + 265908500404.

It is an arithmetic number, because the mean of its divisors is an integer number (265908500404).

Almost surely, 2^531817000807 is an apocalyptic number.

531817000807 is a deficient number, since it is larger than the sum of its proper divisors (1).

531817000807 is an equidigital number, since it uses as much as digits as its factorization.

531817000807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 40.

The spelling of 531817000807 in words is "five hundred thirty-one billion, eight hundred seventeen million, eight hundred seven", and thus it is an aban number.