2780027790 has 32 divisors (see below), whose sum is σ = 6690677760. Its totient is φ = 739272864.

The previous prime is 2780027771. The next prime is 2780027801. The reversal of 2780027790 is 977200872.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 118294 + ... + 139833.

It is an arithmetic number, because the mean of its divisors is an integer number (209083680).

Almost surely, 2^2780027790 is an apocalyptic number.

2780027790 is an abundant number, since it is smaller than the sum of its proper divisors (3910649970).

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

2780027790 is a wasteful number, since it uses less digits than its factorization.

2780027790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258496.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 2780027790 is about 52725.9688388938. The cubic root of 2780027790 is about 1406.1005531653.

The spelling of 2780027790 in words is "two billion, seven hundred eighty million, twenty-seven thousand, seven hundred ninety".