2780724912 has 60 divisors (see below), whose sum is σ = 8356369176. Its totient is φ = 794492160.

The previous prime is 2780724907. The next prime is 2780724913. The reversal of 2780724912 is 2194270872.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (2780724913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 588789 + ... + 593492.

Almost surely, 2^2780724912 is an apocalyptic number.

It is an amenable number.

2780724912 is an abundant number, since it is smaller than the sum of its proper divisors (5575644264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2780724912 is a wasteful number, since it uses less digits than its factorization.

2780724912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182306 (or 1182293 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 2780724912 is about 52732.5792276464. The cubic root of 2780724912 is about 1406.2180749770.

The spelling of 2780724912 in words is "two billion, seven hundred eighty million, seven hundred twenty-four thousand, nine hundred twelve".