40622521321 has 2 divisors, whose sum is σ = 40622521322. Its totient is φ = 40622521320.

The previous prime is 40622521319. The next prime is 40622521361. The reversal of 40622521321 is 12312522604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35508126096 + 5114395225 = 188436^2 + 71515^2 .

It is a cyclic number.

It is not a de Polignac number, because 40622521321 - 2¹ = 40622521319 is a prime.

Together with 40622521319, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40622521321.

It is not a weakly prime, because it can be changed into another prime (40622521361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20311260660 + 20311260661.

It is an arithmetic number, because the mean of its divisors is an integer number (20311260661).

Almost surely, 2^40622521321 is an apocalyptic number.

It is an amenable number.

40622521321 is a deficient number, since it is larger than the sum of its proper divisors (1).

40622521321 is an equidigital number, since it uses as much as digits as its factorization.

40622521321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 40622521321 in words is "forty billion, six hundred twenty-two million, five hundred twenty-one thousand, three hundred twenty-one".