20350150409 has 2 divisors, whose sum is σ = 20350150410. Its totient is φ = 20350150408.

The previous prime is 20350150363. The next prime is 20350150489. The reversal of 20350150409 is 90405105302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16809900409 + 3540250000 = 129653^2 + 59500^2 .

It is a cyclic number.

It is not a de Polignac number, because 20350150409 - 2¹⁶ = 20350084873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20350150489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175075204 + 10175075205.

It is an arithmetic number, because the mean of its divisors is an integer number (10175075205).

Almost surely, 2^20350150409 is an apocalyptic number.

It is an amenable number.

20350150409 is a deficient number, since it is larger than the sum of its proper divisors (1).

20350150409 is an equidigital number, since it uses as much as digits as its factorization.

20350150409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 20350150409 in words is "twenty billion, three hundred fifty million, one hundred fifty thousand, four hundred nine".