2745087819 has 4 divisors (see below), whose sum is σ = 3660117096. Its totient is φ = 1830058544.

The previous prime is 2745087817. The next prime is 2745087827. The reversal of 2745087819 is 9187805472.

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 2745087819 - 2¹ = 2745087817 is a prime.

It is a super-2 number, since 2×2745087819² = 15071014268044353522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2745087817) 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, 457514634 + ... + 457514639.

It is an arithmetic number, because the mean of its divisors is an integer number (915029274).

Almost surely, 2^2745087819 is an apocalyptic number.

2745087819 is a deficient number, since it is larger than the sum of its proper divisors (915029277).

2745087819 is an equidigital number, since it uses as much as digits as its factorization.

2745087819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915029276.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The square root of 2745087819 is about 52393.5856665680. The cubic root of 2745087819 is about 1400.1849787894.

The spelling of 2745087819 in words is "two billion, seven hundred forty-five million, eighty-seven thousand, eight hundred nineteen".