2785492805 has 8 divisors (see below), whose sum is σ = 3347532792. Its totient is φ = 2225099968.

The previous prime is 2785492799. The next prime is 2785492807. The reversal of 2785492805 is 5082945872.

2785492805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 848964769 + 1936528036 = 29137^2 + 44006^2 .

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 2785492805 - 2¹⁶ = 2785427269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2785492807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 408062 + ... + 414831.

It is an arithmetic number, because the mean of its divisors is an integer number (418441599).

Almost surely, 2^2785492805 is an apocalyptic number.

It is an amenable number.

2785492805 is a deficient number, since it is larger than the sum of its proper divisors (562039987).

2785492805 is an equidigital number, since it uses as much as digits as its factorization.

2785492805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823575.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The square root of 2785492805 is about 52777.7680941512. The cubic root of 2785492805 is about 1407.0213270265.

The spelling of 2785492805 in words is "two billion, seven hundred eighty-five million, four hundred ninety-two thousand, eight hundred five".