2788245505 has 8 divisors (see below), whose sum is σ = 3346178472. Its totient is φ = 2230407168.

The previous prime is 2788245479. The next prime is 2788245511. The reversal of 2788245505 is 5055428872.

It can be written as a sum of positive squares in 4 ways, for example, as 7054336 + 2781191169 = 2656^2 + 52737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2788245505 - 2⁹ = 2788244993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98847 + ... + 123883.

It is an arithmetic number, because the mean of its divisors is an integer number (418272309).

Almost surely, 2^2788245505 is an apocalyptic number.

It is an amenable number.

2788245505 is a deficient number, since it is larger than the sum of its proper divisors (557932967).

2788245505 is a wasteful number, since it uses less digits than its factorization.

2788245505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47315.

The product of its (nonzero) digits is 896000, while the sum is 46.

The square root of 2788245505 is about 52803.8398698428. The cubic root of 2788245505 is about 1407.4846600572.

The spelling of 2788245505 in words is "two billion, seven hundred eighty-eight million, two hundred forty-five thousand, five hundred five".