2788969785 has 32 divisors (see below), whose sum is σ = 5164400640. Its totient is φ = 1258815168.

The previous prime is 2788969751. The next prime is 2788969787. The reversal of 2788969785 is 5879698872.

2788969785 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2788969785 - 2⁶ = 2788969721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2788969787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159817 + ... + 176406.

It is an arithmetic number, because the mean of its divisors is an integer number (161387520).

Almost surely, 2^2788969785 is an apocalyptic number.

It is an amenable number.

2788969785 is a deficient number, since it is larger than the sum of its proper divisors (2375430855).

2788969785 is a wasteful number, since it uses less digits than its factorization.

2788969785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336317.

The product of its digits is 121927680, while the sum is 69.

The square root of 2788969785 is about 52810.6976378839. The cubic root of 2788969785 is about 1407.6065198112.

The spelling of 2788969785 in words is "two billion, seven hundred eighty-eight million, nine hundred sixty-nine thousand, seven hundred eighty-five".