83683863971 has 2 divisors, whose sum is σ = 83683863972. Its totient is φ = 83683863970.

The previous prime is 83683863947. The next prime is 83683864021. The reversal of 83683863971 is 17936838638.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83683863971 - 2³⁴ = 66503994787 is a prime.

It is not a weakly prime, because it can be changed into another prime (83683862971) 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 as a sum of consecutive naturals, namely, 41841931985 + 41841931986.

It is an arithmetic number, because the mean of its divisors is an integer number (41841931986).

Almost surely, 2^83683863971 is an apocalyptic number.

83683863971 is a deficient number, since it is larger than the sum of its proper divisors (1).

83683863971 is an equidigital number, since it uses as much as digits as its factorization.

83683863971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31352832, while the sum is 62.

The spelling of 83683863971 in words is "eighty-three billion, six hundred eighty-three million, eight hundred sixty-three thousand, nine hundred seventy-one".