2385856549 has 2 divisors, whose sum is σ = 2385856550. Its totient is φ = 2385856548.

The previous prime is 2385856537. The next prime is 2385856579. The reversal of 2385856549 is 9456585832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2172492100 + 213364449 = 46610^2 + 14607^2 .

It is a cyclic number.

It is not a de Polignac number, because 2385856549 - 2¹¹ = 2385854501 is a prime.

It is a super-2 number, since 2×2385856549² = 11384622944812378802, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2385856549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2385856579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1192928274 + 1192928275.

It is an arithmetic number, because the mean of its divisors is an integer number (1192928275).

Almost surely, 2^2385856549 is an apocalyptic number.

It is an amenable number.

2385856549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2385856549 is an equidigital number, since it uses as much as digits as its factorization.

2385856549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368000, while the sum is 55.

The square root of 2385856549 is about 48845.2305655322. The cubic root of 2385856549 is about 1336.2306912537.

The spelling of 2385856549 in words is "two billion, three hundred eighty-five million, eight hundred fifty-six thousand, five hundred forty-nine".