2788145791 has 2 divisors, whose sum is σ = 2788145792. Its totient is φ = 2788145790.

The previous prime is 2788145777. The next prime is 2788145827. The reversal of 2788145791 is 1975418872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2788145791 - 2⁹ = 2788145279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2788140791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394072895 + 1394072896.

It is an arithmetic number, because the mean of its divisors is an integer number (1394072896).

Almost surely, 2^2788145791 is an apocalyptic number.

2788145791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2788145791 is an equidigital number, since it uses as much as digits as its factorization.

2788145791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 52.

The square root of 2788145791 is about 52802.8956687036. The cubic root of 2788145791 is about 1407.4678815731.

The spelling of 2788145791 in words is "two billion, seven hundred eighty-eight million, one hundred forty-five thousand, seven hundred ninety-one".