40041401421289 has 2 divisors, whose sum is σ = 40041401421290. Its totient is φ = 40041401421288.

The previous prime is 40041401421257. The next prime is 40041401421361. The reversal of 40041401421289 is 98212410414004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21998726478400 + 18042674942889 = 4690280^2 + 4247667^2 .

It is a cyclic number.

It is not a de Polignac number, because 40041401421289 - 2⁵ = 40041401421257 is a prime.

It is not a weakly prime, because it can be changed into another prime (40041401421239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20020700710644 + 20020700710645.

It is an arithmetic number, because the mean of its divisors is an integer number (20020700710645).

Almost surely, 2^{40041401421289} is an apocalyptic number.

It is an amenable number.

40041401421289 is a deficient number, since it is larger than the sum of its proper divisors (1).

40041401421289 is an equidigital number, since it uses as much as digits as its factorization.

40041401421289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 40041401421289 in words is "forty trillion, forty-one billion, four hundred one million, four hundred twenty-one thousand, two hundred eighty-nine".