40080684994409 has 2 divisors, whose sum is σ = 40080684994410. Its totient is φ = 40080684994408.

The previous prime is 40080684994373. The next prime is 40080684994451. The reversal of 40080684994409 is 90449948608004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28222496875225 + 11858188119184 = 5312485^2 + 3443572^2 .

It is a cyclic number.

It is not a de Polignac number, because 40080684994409 - 2²⁴ = 40080668217193 is a prime.

It is a super-2 number, since 2×40080684994409² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40080684994499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20040342497204 + 20040342497205.

It is an arithmetic number, because the mean of its divisors is an integer number (20040342497205).

Almost surely, 2^{40080684994409} is an apocalyptic number.

It is an amenable number.

40080684994409 is a deficient number, since it is larger than the sum of its proper divisors (1).

40080684994409 is an equidigital number, since it uses as much as digits as its factorization.

40080684994409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71663616, while the sum is 65.

The spelling of 40080684994409 in words is "forty trillion, eighty billion, six hundred eighty-four million, nine hundred ninety-four thousand, four hundred nine".