2785248673 has 2 divisors, whose sum is σ = 2785248674. Its totient is φ = 2785248672.

The previous prime is 2785248671. The next prime is 2785248689. The reversal of 2785248673 is 3768425872.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2357296704 + 427951969 = 48552^2 + 20687^2 .

It is a cyclic number.

It is not a de Polignac number, because 2785248673 - 2¹ = 2785248671 is a prime.

It is a super-2 number, since 2×2785248673² = 15515220340896521858, which contains 22 as substring.

Together with 2785248671, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2785248673.

It is not a weakly prime, because it can be changed into another prime (2785248671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1392624336 + 1392624337.

It is an arithmetic number, because the mean of its divisors is an integer number (1392624337).

Almost surely, 2^2785248673 is an apocalyptic number.

It is an amenable number.

2785248673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785248673 is an equidigital number, since it uses as much as digits as its factorization.

2785248673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 52.

The square root of 2785248673 is about 52775.4552135744. The cubic root of 2785248673 is about 1406.9802201213.

The spelling of 2785248673 in words is "two billion, seven hundred eighty-five million, two hundred forty-eight thousand, six hundred seventy-three".