40068740057 has 2 divisors, whose sum is σ = 40068740058. Its totient is φ = 40068740056.

The previous prime is 40068740011. The next prime is 40068740111. The reversal of 40068740057 is 75004786004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37649969296 + 2418770761 = 194036^2 + 49181^2 .

It is a cyclic number.

It is not a de Polignac number, because 40068740057 - 2⁶ = 40068739993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40068739996 and 40068740023.

It is not a weakly prime, because it can be changed into another prime (40068740557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20034370028 + 20034370029.

It is an arithmetic number, because the mean of its divisors is an integer number (20034370029).

Almost surely, 2^40068740057 is an apocalyptic number.

It is an amenable number.

40068740057 is a deficient number, since it is larger than the sum of its proper divisors (1).

40068740057 is an equidigital number, since it uses as much as digits as its factorization.

40068740057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 40068740057 in words is "forty billion, sixty-eight million, seven hundred forty thousand, fifty-seven".