20029935093457 has 2 divisors, whose sum is σ = 20029935093458. Its totient is φ = 20029935093456.

The previous prime is 20029935093431. The next prime is 20029935093523. The reversal of 20029935093457 is 75439053992002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13621296015616 + 6408639077841 = 3690704^2 + 2531529^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20029935093457 is a prime.

It is not a weakly prime, because it can be changed into another prime (20029935093257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10014967546728 + 10014967546729.

It is an arithmetic number, because the mean of its divisors is an integer number (10014967546729).

Almost surely, 2^{20029935093457} is an apocalyptic number.

It is an amenable number.

20029935093457 is a deficient number, since it is larger than the sum of its proper divisors (1).

20029935093457 is an equidigital number, since it uses as much as digits as its factorization.

20029935093457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18370800, while the sum is 58.

The spelling of 20029935093457 in words is "twenty trillion, twenty-nine billion, nine hundred thirty-five million, ninety-three thousand, four hundred fifty-seven".