20435000460109 has 2 divisors, whose sum is σ = 20435000460110. Its totient is φ = 20435000460108.

The previous prime is 20435000460103. The next prime is 20435000460221. The reversal of 20435000460109 is 90106400053402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20354733070884 + 80267389225 = 4511622^2 + 283315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20435000460109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20435000460103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10217500230054 + 10217500230055.

It is an arithmetic number, because the mean of its divisors is an integer number (10217500230055).

Almost surely, 2^{20435000460109} is an apocalyptic number.

It is an amenable number.

20435000460109 is a deficient number, since it is larger than the sum of its proper divisors (1).

20435000460109 is an equidigital number, since it uses as much as digits as its factorization.

20435000460109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 20435000460109 in words is "twenty trillion, four hundred thirty-five billion, four hundred sixty thousand, one hundred nine".