2781254343 has 16 divisors (see below), whose sum is σ = 4245647616. Its totient is φ = 1586458560.

The previous prime is 2781254327. The next prime is 2781254347. The reversal of 2781254343 is 3434521872.

2781254343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2781254343 - 2⁴ = 2781254327 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2781254347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105798 + ... + 129443.

It is an arithmetic number, because the mean of its divisors is an integer number (265352976).

Almost surely, 2^2781254343 is an apocalyptic number.

2781254343 is a deficient number, since it is larger than the sum of its proper divisors (1464393273).

2781254343 is a wasteful number, since it uses less digits than its factorization.

2781254343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235814.

The product of its digits is 161280, while the sum is 39.

The square root of 2781254343 is about 52737.5989498953. The cubic root of 2781254343 is about 1406.3073140808.

The spelling of 2781254343 in words is "two billion, seven hundred eighty-one million, two hundred fifty-four thousand, three hundred forty-three".