1440442625977 has 2 divisors, whose sum is σ = 1440442625978. Its totient is φ = 1440442625976.

The previous prime is 1440442625863. The next prime is 1440442626011. The reversal of 1440442625977 is 7795262440441.

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., 1309786402681 + 130656223296 = 1144459^2 + 361464^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440442625977 - 2³¹ = 1438295142329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1440442125977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720221312988 + 720221312989.

It is an arithmetic number, because the mean of its divisors is an integer number (720221312989).

Almost surely, 2^{1440442625977} is an apocalyptic number.

It is an amenable number.

1440442625977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440442625977 is an equidigital number, since it uses as much as digits as its factorization.

1440442625977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 1440442625977 in words is "one trillion, four hundred forty billion, four hundred forty-two million, six hundred twenty-five thousand, nine hundred seventy-seven".