83123620376717 has 2 divisors, whose sum is σ = 83123620376718. Its totient is φ = 83123620376716.

The previous prime is 83123620376659. The next prime is 83123620376761. The reversal of 83123620376717 is 71767302632138.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82513587522601 + 610032854116 = 9083699^2 + 781046^2 .

It is a cyclic number.

It is not a de Polignac number, because 83123620376717 - 2¹⁰ = 83123620375693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83123620376417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41561810188358 + 41561810188359.

It is an arithmetic number, because the mean of its divisors is an integer number (41561810188359).

Almost surely, 2^{83123620376717} is an apocalyptic number.

It is an amenable number.

83123620376717 is a deficient number, since it is larger than the sum of its proper divisors (1).

83123620376717 is an equidigital number, since it uses as much as digits as its factorization.

83123620376717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10668672, while the sum is 56.

The spelling of 83123620376717 in words is "eighty-three trillion, one hundred twenty-three billion, six hundred twenty million, three hundred seventy-six thousand, seven hundred seventeen".