2781203479 has 2 divisors, whose sum is σ = 2781203480. Its totient is φ = 2781203478.

The previous prime is 2781203473. The next prime is 2781203483. The reversal of 2781203479 is 9743021872.

2781203479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2781203479 - 2¹¹ = 2781201431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2781203473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390601739 + 1390601740.

It is an arithmetic number, because the mean of its divisors is an integer number (1390601740).

Almost surely, 2^2781203479 is an apocalyptic number.

2781203479 is a deficient number, since it is larger than the sum of its proper divisors (1).

2781203479 is an equidigital number, since it uses as much as digits as its factorization.

2781203479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 2781203479 is about 52737.1167110983. The cubic root of 2781203479 is about 1406.2987411083.

The spelling of 2781203479 in words is "two billion, seven hundred eighty-one million, two hundred three thousand, four hundred seventy-nine".