83812642867 has 2 divisors, whose sum is σ = 83812642868. Its totient is φ = 83812642866.

The previous prime is 83812642817. The next prime is 83812642883. The reversal of 83812642867 is 76824621838.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83812642867 is a prime.

It is a super-3 number, since 3×83812642867³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (83812642817) 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, 41906321433 + 41906321434.

It is an arithmetic number, because the mean of its divisors is an integer number (41906321434).

Almost surely, 2^83812642867 is an apocalyptic number.

83812642867 is a deficient number, since it is larger than the sum of its proper divisors (1).

83812642867 is an equidigital number, since it uses as much as digits as its factorization.

83812642867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6193152, while the sum is 55.

The spelling of 83812642867 in words is "eighty-three billion, eight hundred twelve million, six hundred forty-two thousand, eight hundred sixty-seven".