2782418245 has 4 divisors (see below), whose sum is σ = 3338901900. Its totient is φ = 2225934592.

The previous prime is 2782418209. The next prime is 2782418251. The reversal of 2782418245 is 5428142872.

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

It can be written as a sum of positive squares in 2 ways, for example, as 975063076 + 1807355169 = 31226^2 + 42513^2 .

It is a cyclic number.

It is not a de Polignac number, because 2782418245 - 2⁷ = 2782418117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278241820 + ... + 278241829.

It is an arithmetic number, because the mean of its divisors is an integer number (834725475).

Almost surely, 2^2782418245 is an apocalyptic number.

It is an amenable number.

2782418245 is a deficient number, since it is larger than the sum of its proper divisors (556483655).

2782418245 is an equidigital number, since it uses as much as digits as its factorization.

2782418245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556483654.

The product of its digits is 286720, while the sum is 43.

The square root of 2782418245 is about 52748.6326363063. The cubic root of 2782418245 is about 1406.5034576696.

The spelling of 2782418245 in words is "two billion, seven hundred eighty-two million, four hundred eighteen thousand, two hundred forty-five".