40212551441 has 2 divisors, whose sum is σ = 40212551442. Its totient is φ = 40212551440.

The previous prime is 40212551411. The next prime is 40212551443. The reversal of 40212551441 is 14415521204.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36301299841 + 3911251600 = 190529^2 + 62540^2 .

It is a cyclic number.

It is not a de Polignac number, because 40212551441 - 2¹⁴ = 40212535057 is a prime.

Together with 40212551443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40212551443) 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, 20106275720 + 20106275721.

It is an arithmetic number, because the mean of its divisors is an integer number (20106275721).

Almost surely, 2^40212551441 is an apocalyptic number.

It is an amenable number.

40212551441 is a deficient number, since it is larger than the sum of its proper divisors (1).

40212551441 is an equidigital number, since it uses as much as digits as its factorization.

40212551441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6400, while the sum is 29.

The spelling of 40212551441 in words is "forty billion, two hundred twelve million, five hundred fifty-one thousand, four hundred forty-one".