2768388149 has 2 divisors, whose sum is σ = 2768388150. Its totient is φ = 2768388148.

The previous prime is 2768388121. The next prime is 2768388187. The reversal of 2768388149 is 9418838672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1966479025 + 801909124 = 44345^2 + 28318^2 .

It is a cyclic number.

It is not a de Polignac number, because 2768388149 - 2¹² = 2768384053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2768388094 and 2768388103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2768388109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1384194074 + 1384194075.

It is an arithmetic number, because the mean of its divisors is an integer number (1384194075).

Almost surely, 2^2768388149 is an apocalyptic number.

It is an amenable number.

2768388149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2768388149 is an equidigital number, since it uses as much as digits as its factorization.

2768388149 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 2768388149 is about 52615.4744253057. The cubic root of 2768388149 is about 1404.1354168796.

The spelling of 2768388149 in words is "two billion, seven hundred sixty-eight million, three hundred eighty-eight thousand, one hundred forty-nine".