2781245912 has 8 divisors (see below), whose sum is σ = 5214836100. Its totient is φ = 1390622952.

The previous prime is 2781245903. The next prime is 2781245939. The reversal of 2781245912 is 2195421872.

2781245912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 2781245912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173827862 + ... + 173827877.

Almost surely, 2^2781245912 is an apocalyptic number.

It is an amenable number.

2781245912 is a deficient number, since it is larger than the sum of its proper divisors (2433590188).

2781245912 is a wasteful number, since it uses less digits than its factorization.

2781245912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347655745 (or 347655741 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 2781245912 is about 52737.5190163512. The cubic root of 2781245912 is about 1406.3058930686.

The spelling of 2781245912 in words is "two billion, seven hundred eighty-one million, two hundred forty-five thousand, nine hundred twelve".