2785248685 has 8 divisors (see below), whose sum is σ = 3350019960. Its totient is φ = 2223051264.

The previous prime is 2785248673. The next prime is 2785248689. The reversal of 2785248685 is 5868425872.

It can be written as a sum of positive squares in 4 ways, for example, as 256064004 + 2529184681 = 16002^2 + 50291^2 .

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 2785248685 - 2¹¹ = 2785246637 is a prime.

It is a super-2 number, since 2×2785248685² = 15515220474588458450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2785248689) 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, 641080 + ... + 645409.

It is an arithmetic number, because the mean of its divisors is an integer number (418752495).

Almost surely, 2^2785248685 is an apocalyptic number.

It is an amenable number.

2785248685 is a deficient number, since it is larger than the sum of its proper divisors (564771275).

2785248685 is a wasteful number, since it uses less digits than its factorization.

2785248685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286927.

The product of its digits is 8601600, while the sum is 55.

The square root of 2785248685 is about 52775.4553272636. The cubic root of 2785248685 is about 1406.9802221419.

The spelling of 2785248685 in words is "two billion, seven hundred eighty-five million, two hundred forty-eight thousand, six hundred eighty-five".