20048126009 has 2 divisors, whose sum is σ = 20048126010. Its totient is φ = 20048126008.

The previous prime is 20048125961. The next prime is 20048126017. The reversal of 20048126009 is 90062184002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15525160000 + 4522966009 = 124600^2 + 67253^2 .

It is a cyclic number.

It is not a de Polignac number, because 20048126009 - 2²⁴ = 20031348793 is a prime.

It is not a weakly prime, because it can be changed into another prime (20048176009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10024063004 + 10024063005.

It is an arithmetic number, because the mean of its divisors is an integer number (10024063005).

Almost surely, 2^20048126009 is an apocalyptic number.

It is an amenable number.

20048126009 is a deficient number, since it is larger than the sum of its proper divisors (1).

20048126009 is an equidigital number, since it uses as much as digits as its factorization.

20048126009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 20048126009 in words is "twenty billion, forty-eight million, one hundred twenty-six thousand, nine".