2798513345 has 4 divisors (see below), whose sum is σ = 3358216020. Its totient is φ = 2238810672.

The previous prime is 2798513329. The next prime is 2798513357. The reversal of 2798513345 is 5433158972.

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 675792016 + 2122721329 = 25996^2 + 46073^2 .

It is a cyclic number.

It is not a de Polignac number, because 2798513345 - 2⁴ = 2798513329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2798513345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279851330 + ... + 279851339.

It is an arithmetic number, because the mean of its divisors is an integer number (839554005).

Almost surely, 2^2798513345 is an apocalyptic number.

It is an amenable number.

2798513345 is a deficient number, since it is larger than the sum of its proper divisors (559702675).

2798513345 is an equidigital number, since it uses as much as digits as its factorization.

2798513345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559702674.

The product of its digits is 907200, while the sum is 47.

The square root of 2798513345 is about 52900.9767868231. The cubic root of 2798513345 is about 1409.2102522064.

The spelling of 2798513345 in words is "two billion, seven hundred ninety-eight million, five hundred thirteen thousand, three hundred forty-five".