2781195043 has 16 divisors (see below), whose sum is σ = 3067021440. Its totient is φ = 2521819080.

The previous prime is 2781195037. The next prime is 2781195047. The reversal of 2781195043 is 3405911872.

2781195043 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 2781195043 - 2¹³ = 2781186851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2781194987 and 2781195005.

It is not an unprimeable number, because it can be changed into a prime (2781195047) 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, 555196 + ... + 560182.

It is an arithmetic number, because the mean of its divisors is an integer number (191688840).

Almost surely, 2^2781195043 is an apocalyptic number.

2781195043 is a deficient number, since it is larger than the sum of its proper divisors (285826397).

2781195043 is an equidigital number, since it uses as much as digits as its factorization.

2781195043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5439 (or 5417 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 2781195043 is about 52737.0367294182. The cubic root of 2781195043 is about 1406.2973192360.

The spelling of 2781195043 in words is "two billion, seven hundred eighty-one million, one hundred ninety-five thousand, forty-three".