2939943323777 has 2 divisors, whose sum is σ = 2939943323778. Its totient is φ = 2939943323776.

The previous prime is 2939943323743. The next prime is 2939943323857. The reversal of 2939943323777 is 7773233499392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2516058991681 + 423884332096 = 1586209^2 + 651064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2939943323777 - 2²⁰ = 2939942275201 is a prime.

It is not a weakly prime, because it can be changed into another prime (2939943323477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1469971661888 + 1469971661889.

It is an arithmetic number, because the mean of its divisors is an integer number (1469971661889).

Almost surely, 2^{2939943323777} is an apocalyptic number.

It is an amenable number.

2939943323777 is a deficient number, since it is larger than the sum of its proper divisors (1).

2939943323777 is an equidigital number, since it uses as much as digits as its factorization.

2939943323777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324060912, while the sum is 68.

The spelling of 2939943323777 in words is "two trillion, nine hundred thirty-nine billion, nine hundred forty-three million, three hundred twenty-three thousand, seven hundred seventy-seven".