12780373783 has 2 divisors, whose sum is σ = 12780373784. Its totient is φ = 12780373782.

The previous prime is 12780373741. The next prime is 12780373819. The reversal of 12780373783 is 38737308721.

It is a strong prime.

It is an emirp because it is prime and its reverse (38737308721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12780373783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12780373733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6390186891 + 6390186892.

It is an arithmetic number, because the mean of its divisors is an integer number (6390186892).

Almost surely, 2^12780373783 is an apocalyptic number.

12780373783 is a deficient number, since it is larger than the sum of its proper divisors (1).

12780373783 is an equidigital number, since it uses as much as digits as its factorization.

12780373783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 12780373783 in words is "twelve billion, seven hundred eighty million, three hundred seventy-three thousand, seven hundred eighty-three".