83506009687 has 2 divisors, whose sum is σ = 83506009688. Its totient is φ = 83506009686.

The previous prime is 83506009673. The next prime is 83506009753. The reversal of 83506009687 is 78690060538.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83506009687 - 2²⁷ = 83371791959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83506009667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41753004843 + 41753004844.

It is an arithmetic number, because the mean of its divisors is an integer number (41753004844).

Almost surely, 2^83506009687 is an apocalyptic number.

83506009687 is a deficient number, since it is larger than the sum of its proper divisors (1).

83506009687 is an equidigital number, since it uses as much as digits as its factorization.

83506009687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 83506009687 in words is "eighty-three billion, five hundred six million, nine thousand, six hundred eighty-seven".