83668001731 has 2 divisors, whose sum is σ = 83668001732. Its totient is φ = 83668001730.

The previous prime is 83668001713. The next prime is 83668001773. The reversal of 83668001731 is 13710086638.

Together with previous prime (83668001713) 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 83668001731 - 2⁵ = 83668001699 is a prime.

It is a super-2 number, since 2×83668001731² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83668008731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41834000865 + 41834000866.

It is an arithmetic number, because the mean of its divisors is an integer number (41834000866).

Almost surely, 2^83668001731 is an apocalyptic number.

83668001731 is a deficient number, since it is larger than the sum of its proper divisors (1).

83668001731 is an equidigital number, since it uses as much as digits as its factorization.

83668001731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 83668001731 in words is "eighty-three billion, six hundred sixty-eight million, one thousand, seven hundred thirty-one".