40204432273 has 2 divisors, whose sum is σ = 40204432274. Its totient is φ = 40204432272.

The previous prime is 40204432267. The next prime is 40204432283. The reversal of 40204432273 is 37223440204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40107271824 + 97160449 = 200268^2 + 9857^2 .

It is a cyclic number.

It is not a de Polignac number, because 40204432273 - 2⁵ = 40204432241 is a prime.

It is not a weakly prime, because it can be changed into another prime (40204432283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20102216136 + 20102216137.

It is an arithmetic number, because the mean of its divisors is an integer number (20102216137).

Almost surely, 2^40204432273 is an apocalyptic number.

It is an amenable number.

40204432273 is a deficient number, since it is larger than the sum of its proper divisors (1).

40204432273 is an equidigital number, since it uses as much as digits as its factorization.

40204432273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 31.

Adding to 40204432273 its reverse (37223440204), we get a palindrome (77427872477).

The spelling of 40204432273 in words is "forty billion, two hundred four million, four hundred thirty-two thousand, two hundred seventy-three".