2788145161 has 2 divisors, whose sum is σ = 2788145162. Its totient is φ = 2788145160.

The previous prime is 2788145159. The next prime is 2788145179. The reversal of 2788145161 is 1615418872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2605489936 + 182655225 = 51044^2 + 13515^2 .

It is a cyclic number.

It is not a de Polignac number, because 2788145161 - 2¹ = 2788145159 is a prime.

Together with 2788145159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2788145141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394072580 + 1394072581.

It is an arithmetic number, because the mean of its divisors is an integer number (1394072581).

Almost surely, 2^2788145161 is an apocalyptic number.

It is an amenable number.

2788145161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2788145161 is an equidigital number, since it uses as much as digits as its factorization.

2788145161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 43.

The square root of 2788145161 is about 52802.8897031214. The cubic root of 2788145161 is about 1407.4677755642.

The spelling of 2788145161 in words is "two billion, seven hundred eighty-eight million, one hundred forty-five thousand, one hundred sixty-one".