20404393283 has 2 divisors, whose sum is σ = 20404393284. Its totient is φ = 20404393282.

The previous prime is 20404393271. The next prime is 20404393319. The reversal of 20404393283 is 38239340402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20404393283 is a prime.

It is not a weakly prime, because it can be changed into another prime (20404393883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10202196641 + 10202196642.

It is an arithmetic number, because the mean of its divisors is an integer number (10202196642).

Almost surely, 2^20404393283 is an apocalyptic number.

20404393283 is a deficient number, since it is larger than the sum of its proper divisors (1).

20404393283 is an equidigital number, since it uses as much as digits as its factorization.

20404393283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 20404393283 in words is "twenty billion, four hundred four million, three hundred ninety-three thousand, two hundred eighty-three".