40319242829 has 2 divisors, whose sum is σ = 40319242830. Its totient is φ = 40319242828.

The previous prime is 40319242819. The next prime is 40319242841. The reversal of 40319242829 is 92824291304.

It is a happy number.

40319242829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40204260100 + 114982729 = 200510^2 + 10723^2 .

It is a cyclic number.

It is not a de Polignac number, because 40319242829 - 2⁴ = 40319242813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40319242829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40319242819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20159621414 + 20159621415.

It is an arithmetic number, because the mean of its divisors is an integer number (20159621415).

Almost surely, 2^40319242829 is an apocalyptic number.

It is an amenable number.

40319242829 is a deficient number, since it is larger than the sum of its proper divisors (1).

40319242829 is an equidigital number, since it uses as much as digits as its factorization.

40319242829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 40319242829 in words is "forty billion, three hundred nineteen million, two hundred forty-two thousand, eight hundred twenty-nine".