2781368972 has 12 divisors (see below), whose sum is σ = 4869301080. Its totient is φ = 1390140096.

The previous prime is 2781368939. The next prime is 2781368977. The reversal of 2781368972 is 2798631872.

It is not an unprimeable number, because it can be changed into a prime (2781368977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124493 + ... + 145124.

It is an arithmetic number, because the mean of its divisors is an integer number (405775090).

Almost surely, 2^2781368972 is an apocalyptic number.

It is an amenable number.

2781368972 is a deficient number, since it is larger than the sum of its proper divisors (2087932108).

2781368972 is a wasteful number, since it uses less digits than its factorization.

2781368972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272200 (or 272198 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 53.

The square root of 2781368972 is about 52738.6857249970. The cubic root of 2781368972 is about 1406.3266340670.

The spelling of 2781368972 in words is "two billion, seven hundred eighty-one million, three hundred sixty-eight thousand, nine hundred seventy-two".