40320413369 has 2 divisors, whose sum is σ = 40320413370. Its totient is φ = 40320413368.

The previous prime is 40320413303. The next prime is 40320413381. The reversal of 40320413369 is 96331402304.

40320413369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36481000000 + 3839413369 = 191000^2 + 61963^2 .

It is a cyclic number.

It is not a de Polignac number, because 40320413369 - 2³² = 36025446073 is a prime.

It is a super-2 number, since 2×40320413369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40320413389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20160206684 + 20160206685.

It is an arithmetic number, because the mean of its divisors is an integer number (20160206685).

Almost surely, 2^40320413369 is an apocalyptic number.

It is an amenable number.

40320413369 is a deficient number, since it is larger than the sum of its proper divisors (1).

40320413369 is an equidigital number, since it uses as much as digits as its factorization.

40320413369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 40320413369 in words is "forty billion, three hundred twenty million, four hundred thirteen thousand, three hundred sixty-nine".