40323721267 has 2 divisors, whose sum is σ = 40323721268. Its totient is φ = 40323721266.

The previous prime is 40323721247. The next prime is 40323721289. The reversal of 40323721267 is 76212732304.

40323721267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40323721267 - 2²⁷ = 40189503539 is a prime.

It is not a weakly prime, because it can be changed into another prime (40323721247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161860633 + 20161860634.

It is an arithmetic number, because the mean of its divisors is an integer number (20161860634).

Almost surely, 2^40323721267 is an apocalyptic number.

40323721267 is a deficient number, since it is larger than the sum of its proper divisors (1).

40323721267 is an equidigital number, since it uses as much as digits as its factorization.

40323721267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 40323721267 in words is "forty billion, three hundred twenty-three million, seven hundred twenty-one thousand, two hundred sixty-seven".