83697005548789 has 2 divisors, whose sum is σ = 83697005548790. Its totient is φ = 83697005548788.

The previous prime is 83697005548763. The next prime is 83697005548829. The reversal of 83697005548789 is 98784550079638.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65083217051889 + 18613788496900 = 8067417^2 + 4314370^2 .

It is a cyclic number.

It is not a de Polignac number, because 83697005548789 - 2¹³ = 83697005540597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83697005548759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41848502774394 + 41848502774395.

It is an arithmetic number, because the mean of its divisors is an integer number (41848502774395).

Almost surely, 2^{83697005548789} is an apocalyptic number.

It is an amenable number.

83697005548789 is a deficient number, since it is larger than the sum of its proper divisors (1).

83697005548789 is an equidigital number, since it uses as much as digits as its factorization.

83697005548789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3657830400, while the sum is 79.

The spelling of 83697005548789 in words is "eighty-three trillion, six hundred ninety-seven billion, five million, five hundred forty-eight thousand, seven hundred eighty-nine".