1440215042947 has 2 divisors, whose sum is σ = 1440215042948. Its totient is φ = 1440215042946.

The previous prime is 1440215042909. The next prime is 1440215043083. The reversal of 1440215042947 is 7492405120441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1440215042947 - 2³⁹ = 890459229059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1440215042347) 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, 720107521473 + 720107521474.

It is an arithmetic number, because the mean of its divisors is an integer number (720107521474).

Almost surely, 2^{1440215042947} is an apocalyptic number.

1440215042947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440215042947 is an equidigital number, since it uses as much as digits as its factorization.

1440215042947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 1440215042947 in words is "one trillion, four hundred forty billion, two hundred fifteen million, forty-two thousand, nine hundred forty-seven".