40610459249909 has 2 divisors, whose sum is σ = 40610459249910. Its totient is φ = 40610459249908.

The previous prime is 40610459249873. The next prime is 40610459249947. The reversal of 40610459249909 is 90994295401604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35561877170884 + 5048582079025 = 5963378^2 + 2246905^2 .

It is a cyclic number.

It is not a de Polignac number, because 40610459249909 - 2²⁰ = 40610458201333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40610459246909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20305229624954 + 20305229624955.

It is an arithmetic number, because the mean of its divisors is an integer number (20305229624955).

Almost surely, 2^{40610459249909} is an apocalyptic number.

It is an amenable number.

40610459249909 is a deficient number, since it is larger than the sum of its proper divisors (1).

40610459249909 is an equidigital number, since it uses as much as digits as its factorization.

40610459249909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25194240, while the sum is 62.

The spelling of 40610459249909 in words is "forty trillion, six hundred ten billion, four hundred fifty-nine million, two hundred forty-nine thousand, nine hundred nine".