20589730229 has 2 divisors, whose sum is σ = 20589730230. Its totient is φ = 20589730228.

The previous prime is 20589730223. The next prime is 20589730277. The reversal of 20589730229 is 92203798502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12320556004 + 8269174225 = 110998^2 + 90935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20589730229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20589730223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10294865114 + 10294865115.

It is an arithmetic number, because the mean of its divisors is an integer number (10294865115).

Almost surely, 2^20589730229 is an apocalyptic number.

It is an amenable number.

20589730229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20589730229 is an equidigital number, since it uses as much as digits as its factorization.

20589730229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 20589730229 in words is "twenty billion, five hundred eighty-nine million, seven hundred thirty thousand, two hundred twenty-nine".