40135004443 has 2 divisors, whose sum is σ = 40135004444. Its totient is φ = 40135004442.

The previous prime is 40135004389. The next prime is 40135004491. The reversal of 40135004443 is 34440053104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40135004443 - 2²¹ = 40132907291 is a prime.

It is a super-2 number, since 2×40135004443² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20135004443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20067502221 + 20067502222.

It is an arithmetic number, because the mean of its divisors is an integer number (20067502222).

Almost surely, 2^40135004443 is an apocalyptic number.

40135004443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40135004443 is an equidigital number, since it uses as much as digits as its factorization.

40135004443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 40135004443 its reverse (34440053104), we get a palindrome (74575057547).

The spelling of 40135004443 in words is "forty billion, one hundred thirty-five million, four thousand, four hundred forty-three".