40396065049 has 2 divisors, whose sum is σ = 40396065050. Its totient is φ = 40396065048.

The previous prime is 40396065029. The next prime is 40396065067. The reversal of 40396065049 is 94056069304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34770315024 + 5625750025 = 186468^2 + 75005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40396065049 is a prime.

It is not a weakly prime, because it can be changed into another prime (40396065029) 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, 20198032524 + 20198032525.

It is an arithmetic number, because the mean of its divisors is an integer number (20198032525).

Almost surely, 2^40396065049 is an apocalyptic number.

It is an amenable number.

40396065049 is a deficient number, since it is larger than the sum of its proper divisors (1).

40396065049 is an equidigital number, since it uses as much as digits as its factorization.

40396065049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 40396065049 in words is "forty billion, three hundred ninety-six million, sixty-five thousand, forty-nine".