83789078204779 has 2 divisors, whose sum is σ = 83789078204780. Its totient is φ = 83789078204778.

The previous prime is 83789078204749. The next prime is 83789078204803. The reversal of 83789078204779 is 97740287098738.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83789078204779 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83789078204699 and 83789078204708.

It is not a weakly prime, because it can be changed into another prime (83789078204749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41894539102389 + 41894539102390.

It is an arithmetic number, because the mean of its divisors is an integer number (41894539102390).

Almost surely, 2^{83789078204779} is an apocalyptic number.

83789078204779 is a deficient number, since it is larger than the sum of its proper divisors (1).

83789078204779 is an equidigital number, since it uses as much as digits as its factorization.

83789078204779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2389782528, while the sum is 79.

The spelling of 83789078204779 in words is "eighty-three trillion, seven hundred eighty-nine billion, seventy-eight million, two hundred four thousand, seven hundred seventy-nine".