40068228787 has 2 divisors, whose sum is σ = 40068228788. Its totient is φ = 40068228786.

The previous prime is 40068228757. The next prime is 40068228791. The reversal of 40068228787 is 78782286004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40068228787 is a prime.

It is not a weakly prime, because it can be changed into another prime (40068228757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20034114393 + 20034114394.

It is an arithmetic number, because the mean of its divisors is an integer number (20034114394).

Almost surely, 2^40068228787 is an apocalyptic number.

40068228787 is a deficient number, since it is larger than the sum of its proper divisors (1).

40068228787 is an equidigital number, since it uses as much as digits as its factorization.

40068228787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2408448, while the sum is 52.

The spelling of 40068228787 in words is "forty billion, sixty-eight million, two hundred twenty-eight thousand, seven hundred eighty-seven".