40842354097 has 2 divisors, whose sum is σ = 40842354098. Its totient is φ = 40842354096.

The previous prime is 40842354071. The next prime is 40842354107. The reversal of 40842354097 is 79045324804.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38902039696 + 1940314401 = 197236^2 + 44049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40842354097 is a prime.

It is not a weakly prime, because it can be changed into another prime (40842354037) 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, 20421177048 + 20421177049.

It is an arithmetic number, because the mean of its divisors is an integer number (20421177049).

Almost surely, 2^40842354097 is an apocalyptic number.

It is an amenable number.

40842354097 is a deficient number, since it is larger than the sum of its proper divisors (1).

40842354097 is an equidigital number, since it uses as much as digits as its factorization.

40842354097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 40842354097 in words is "forty billion, eight hundred forty-two million, three hundred fifty-four thousand, ninety-seven".