2788948361 has 2 divisors, whose sum is σ = 2788948362. Its totient is φ = 2788948360.

The previous prime is 2788948339. The next prime is 2788948399. The reversal of 2788948361 is 1638498872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2418770761 + 370177600 = 49181^2 + 19240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2788948361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2788948297 and 2788948306.

It is not a weakly prime, because it can be changed into another prime (2788948861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394474180 + 1394474181.

It is an arithmetic number, because the mean of its divisors is an integer number (1394474181).

Almost surely, 2^2788948361 is an apocalyptic number.

It is an amenable number.

2788948361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2788948361 is an equidigital number, since it uses as much as digits as its factorization.

2788948361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 56.

The square root of 2788948361 is about 52810.4947998028. The cubic root of 2788948361 is about 1407.6029155366.

The spelling of 2788948361 in words is "two billion, seven hundred eighty-eight million, nine hundred forty-eight thousand, three hundred sixty-one".