83770139093 has 2 divisors, whose sum is σ = 83770139094. Its totient is φ = 83770139092.

The previous prime is 83770139039. The next prime is 83770139107. The reversal of 83770139093 is 39093107738.

Together with previous prime (83770139039) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83762778724 + 7360369 = 289418^2 + 2713^2 .

It is a cyclic number.

It is not a de Polignac number, because 83770139093 - 2²⁴ = 83753361877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83770139293) 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, 41885069546 + 41885069547.

It is an arithmetic number, because the mean of its divisors is an integer number (41885069547).

Almost surely, 2^83770139093 is an apocalyptic number.

It is an amenable number.

83770139093 is a deficient number, since it is larger than the sum of its proper divisors (1).

83770139093 is an equidigital number, since it uses as much as digits as its factorization.

83770139093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 50.

The spelling of 83770139093 in words is "eighty-three billion, seven hundred seventy million, one hundred thirty-nine thousand, ninety-three".