20014020289 has 2 divisors, whose sum is σ = 20014020290. Its totient is φ = 20014020288.

The previous prime is 20014020281. The next prime is 20014020359. The reversal of 20014020289 is 98202041002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19172556225 + 841464064 = 138465^2 + 29008^2 .

It is a cyclic number.

It is not a de Polignac number, because 20014020289 - 2³ = 20014020281 is a prime.

It is a super-2 number, since 2×20014020289² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20014020281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10007010144 + 10007010145.

It is an arithmetic number, because the mean of its divisors is an integer number (10007010145).

Almost surely, 2^20014020289 is an apocalyptic number.

It is an amenable number.

20014020289 is a deficient number, since it is larger than the sum of its proper divisors (1).

20014020289 is an equidigital number, since it uses as much as digits as its factorization.

20014020289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 20014020289 in words is "twenty billion, fourteen million, twenty thousand, two hundred eighty-nine".