40819141409 has 2 divisors, whose sum is σ = 40819141410. Its totient is φ = 40819141408.

The previous prime is 40819141403. The next prime is 40819141411. The reversal of 40819141409 is 90414191804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40216291600 + 602849809 = 200540^2 + 24553^2 .

It is a cyclic number.

It is not a de Polignac number, because 40819141409 - 2²⁴ = 40802364193 is a prime.

Together with 40819141411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40819141403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20409570704 + 20409570705.

It is an arithmetic number, because the mean of its divisors is an integer number (20409570705).

Almost surely, 2^40819141409 is an apocalyptic number.

It is an amenable number.

40819141409 is a deficient number, since it is larger than the sum of its proper divisors (1).

40819141409 is an equidigital number, since it uses as much as digits as its factorization.

40819141409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 40819141409 in words is "forty billion, eight hundred nineteen million, one hundred forty-one thousand, four hundred nine".