29940840593 has 2 divisors, whose sum is σ = 29940840594. Its totient is φ = 29940840592.

The previous prime is 29940840581. The next prime is 29940840607. The reversal of 29940840593 is 39504804992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26514260224 + 3426580369 = 162832^2 + 58537^2 .

It is a cyclic number.

It is not a de Polignac number, because 29940840593 - 2²⁸ = 29672405137 is a prime.

It is not a weakly prime, because it can be changed into another prime (29940840493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14970420296 + 14970420297.

It is an arithmetic number, because the mean of its divisors is an integer number (14970420297).

Almost surely, 2^29940840593 is an apocalyptic number.

It is an amenable number.

29940840593 is a deficient number, since it is larger than the sum of its proper divisors (1).

29940840593 is an equidigital number, since it uses as much as digits as its factorization.

29940840593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 29940840593 in words is "twenty-nine billion, nine hundred forty million, eight hundred forty thousand, five hundred ninety-three".