783876380489 has 2 divisors, whose sum is σ = 783876380490. Its totient is φ = 783876380488.

The previous prime is 783876380459. The next prime is 783876380597. The reversal of 783876380489 is 984083678387.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 608880574864 + 174995805625 = 780308^2 + 418325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-783876380489 is a prime.

It is a super-2 number, since 2×783876380489² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (783876380459) 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, 391938190244 + 391938190245.

It is an arithmetic number, because the mean of its divisors is an integer number (391938190245).

Almost surely, 2^783876380489 is an apocalyptic number.

It is an amenable number.

783876380489 is a deficient number, since it is larger than the sum of its proper divisors (1).

783876380489 is an equidigital number, since it uses as much as digits as its factorization.

783876380489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 390168576, while the sum is 71.

The spelling of 783876380489 in words is "seven hundred eighty-three billion, eight hundred seventy-six million, three hundred eighty thousand, four hundred eighty-nine".