2768193787 has 2 divisors, whose sum is σ = 2768193788. Its totient is φ = 2768193786.

The previous prime is 2768193767. The next prime is 2768193803. The reversal of 2768193787 is 7873918672.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2768193787 is a prime.

It is not a weakly prime, because it can be changed into another prime (2768193737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1384096893 + 1384096894.

It is an arithmetic number, because the mean of its divisors is an integer number (1384096894).

Almost surely, 2^2768193787 is an apocalyptic number.

2768193787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2768193787 is an equidigital number, since it uses as much as digits as its factorization.

2768193787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 58.

The square root of 2768193787 is about 52613.6273887289. The cubic root of 2768193787 is about 1404.1025557657.

The spelling of 2768193787 in words is "two billion, seven hundred sixty-eight million, one hundred ninety-three thousand, seven hundred eighty-seven".