2788238719204 has 27 divisors (see below), whose sum is σ = 4947607329147. Its totient is φ = 1374901608384.

The previous prime is 2788238719193. The next prime is 2788238719207. The reversal of 2788238719204 is 4029178328872.

It is a happy number.

The square root of 2788238719204 is 1669802.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 55036221604 + 2733202497600 = 234598^2 + 1653240^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2788238719207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 243785374 + ... + 243796810.

Almost surely, 2^{2788238719204} is an apocalyptic number.

2788238719204 is the 1669802-nd square number.

It is an amenable number.

2788238719204 is a deficient number, since it is larger than the sum of its proper divisors (2159368609943).

2788238719204 is an frugal number, since it uses more digits than its factorization.

2788238719204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23024 (or 11512 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 2788238719204 in words is "two trillion, seven hundred eighty-eight billion, two hundred thirty-eight million, seven hundred nineteen thousand, two hundred four".