2540822847 has 4 divisors (see below), whose sum is σ = 3387763800. Its totient is φ = 1693881896.

The previous prime is 2540822831. The next prime is 2540822887. The reversal of 2540822847 is 7482280452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2540822847 - 2⁴ = 2540822831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2540822799 and 2540822808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540822887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423470472 + ... + 423470477.

It is an arithmetic number, because the mean of its divisors is an integer number (846940950).

Almost surely, 2^2540822847 is an apocalyptic number.

2540822847 is a deficient number, since it is larger than the sum of its proper divisors (846940953).

2540822847 is an equidigital number, since it uses as much as digits as its factorization.

2540822847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846940952.

The product of its (nonzero) digits is 286720, while the sum is 42.

The square root of 2540822847 is about 50406.5754341633. The cubic root of 2540822847 is about 1364.5563097929.

The spelling of 2540822847 in words is "two billion, five hundred forty million, eight hundred twenty-two thousand, eight hundred forty-seven".