40323721219 has 2 divisors, whose sum is σ = 40323721220. Its totient is φ = 40323721218.

The previous prime is 40323721213. The next prime is 40323721247. The reversal of 40323721219 is 91212732304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40323721219 - 2⁷ = 40323721091 is a prime.

It is a super-2 number, since 2×40323721219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40323721213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161860609 + 20161860610.

It is an arithmetic number, because the mean of its divisors is an integer number (20161860610).

Almost surely, 2^40323721219 is an apocalyptic number.

40323721219 is a deficient number, since it is larger than the sum of its proper divisors (1).

40323721219 is an equidigital number, since it uses as much as digits as its factorization.

40323721219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 40323721219 in words is "forty billion, three hundred twenty-three million, seven hundred twenty-one thousand, two hundred nineteen".