2785264785 has 64 divisors (see below), whose sum is σ = 5307932160. Its totient is φ = 1398000384.

The previous prime is 2785264763. The next prime is 2785264817. The reversal of 2785264785 is 5874625872.

2785264785 is a `hidden beast` number, since 2 + 78 + 526 + 47 + 8 + 5 = 666.

It is not a de Polignac number, because 2785264785 - 2⁶ = 2785264721 is a prime.

It is a super-2 number, since 2×2785264785² = 15515399845122192450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 178404 + ... + 193386.

It is an arithmetic number, because the mean of its divisors is an integer number (82936440).

Almost surely, 2^2785264785 is an apocalyptic number.

It is an amenable number.

2785264785 is a deficient number, since it is larger than the sum of its proper divisors (2522667375).

2785264785 is an equidigital number, since it uses as much as digits as its factorization.

2785264785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15026 (or 15008 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 54.

The square root of 2785264785 is about 52775.6078600711. The cubic root of 2785264785 is about 1406.9829331312.

The spelling of 2785264785 in words is "two billion, seven hundred eighty-five million, two hundred sixty-four thousand, seven hundred eighty-five".