40239466830401 has 2 divisors, whose sum is σ = 40239466830402. Its totient is φ = 40239466830400.

The previous prime is 40239466830347. The next prime is 40239466830427. The reversal of 40239466830401 is 10403866493204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35556462629776 + 4683004200625 = 5962924^2 + 2164025^2 .

It is a cyclic number.

It is not a de Polignac number, because 40239466830401 - 2⁶ = 40239466830337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40239466830401.

It is not a weakly prime, because it can be changed into another prime (40239456830401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20119733415200 + 20119733415201.

It is an arithmetic number, because the mean of its divisors is an integer number (20119733415201).

Almost surely, 2^{40239466830401} is an apocalyptic number.

It is an amenable number.

40239466830401 is a deficient number, since it is larger than the sum of its proper divisors (1).

40239466830401 is an equidigital number, since it uses as much as digits as its factorization.

40239466830401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 50.

The spelling of 40239466830401 in words is "forty trillion, two hundred thirty-nine billion, four hundred sixty-six million, eight hundred thirty thousand, four hundred one".