40766337333749 has 2 divisors, whose sum is σ = 40766337333750. Its totient is φ = 40766337333748.

The previous prime is 40766337333731. The next prime is 40766337333751. The reversal of 40766337333749 is 94733373366704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28009603608100 + 12756733725649 = 5292410^2 + 3571657^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40766337333749 is a prime.

Together with 40766337333751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40766337333779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20383168666874 + 20383168666875.

It is an arithmetic number, because the mean of its divisors is an integer number (20383168666875).

Almost surely, 2^{40766337333749} is an apocalyptic number.

It is an amenable number.

40766337333749 is a deficient number, since it is larger than the sum of its proper divisors (1).

40766337333749 is an equidigital number, since it uses as much as digits as its factorization.

40766337333749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432081216, while the sum is 65.

The spelling of 40766337333749 in words is "forty trillion, seven hundred sixty-six billion, three hundred thirty-seven million, three hundred thirty-three thousand, seven hundred forty-nine".