83849307793 has 2 divisors, whose sum is σ = 83849307794. Its totient is φ = 83849307792.

The previous prime is 83849307781. The next prime is 83849307809. The reversal of 83849307793 is 39770394838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82258255249 + 1591052544 = 286807^2 + 39888^2 .

It is a cyclic number.

It is not a de Polignac number, because 83849307793 - 2⁵ = 83849307761 is a prime.

It is not a weakly prime, because it can be changed into another prime (83849307293) 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, 41924653896 + 41924653897.

It is an arithmetic number, because the mean of its divisors is an integer number (41924653897).

Almost surely, 2^83849307793 is an apocalyptic number.

It is an amenable number.

83849307793 is a deficient number, since it is larger than the sum of its proper divisors (1).

83849307793 is an equidigital number, since it uses as much as digits as its factorization.

83849307793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 83849307793 in words is "eighty-three billion, eight hundred forty-nine million, three hundred seven thousand, seven hundred ninety-three".