2781343703 has 2 divisors, whose sum is σ = 2781343704. Its totient is φ = 2781343702.

The previous prime is 2781343679. The next prime is 2781343781. The reversal of 2781343703 is 3073431872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2781343703 - 2⁸ = 2781343447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2781340703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390671851 + 1390671852.

It is an arithmetic number, because the mean of its divisors is an integer number (1390671852).

Almost surely, 2^2781343703 is an apocalyptic number.

2781343703 is a deficient number, since it is larger than the sum of its proper divisors (1).

2781343703 is an equidigital number, since it uses as much as digits as its factorization.

2781343703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 2781343703 is about 52738.4461564806. The cubic root of 2781343703 is about 1406.3223751840.

The spelling of 2781343703 in words is "two billion, seven hundred eighty-one million, three hundred forty-three thousand, seven hundred three".