2798251648 has 16 divisors (see below), whose sum is σ = 5574642210. Its totient is φ = 1399125760.

The previous prime is 2798251633. The next prime is 2798251667. The reversal of 2798251648 is 8461528972.

It can be written as a sum of positive squares in only one way, i.e., 1536012864 + 1262238784 = 39192^2 + 35528^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 2798251595 and 2798251604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10930543 + ... + 10930798.

Almost surely, 2^2798251648 is an apocalyptic number.

It is an amenable number.

2798251648 is a deficient number, since it is larger than the sum of its proper divisors (2776390562).

2798251648 is an equidigital number, since it uses as much as digits as its factorization.

2798251648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21861355 (or 21861343 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 2798251648 is about 52898.5032680510. The cubic root of 2798251648 is about 1409.1663244079.

The spelling of 2798251648 in words is "two billion, seven hundred ninety-eight million, two hundred fifty-one thousand, six hundred forty-eight".