1440037871977 has 2 divisors, whose sum is σ = 1440037871978. Its totient is φ = 1440037871976.

The previous prime is 1440037871827. The next prime is 1440037872017. The reversal of 1440037871977 is 7791787300441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1301734956096 + 138302915881 = 1140936^2 + 371891^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440037871977 - 2¹¹ = 1440037869929 is a prime.

It is not a weakly prime, because it can be changed into another prime (1440037871177) 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, 720018935988 + 720018935989.

It is an arithmetic number, because the mean of its divisors is an integer number (720018935989).

Almost surely, 2^{1440037871977} is an apocalyptic number.

It is an amenable number.

1440037871977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440037871977 is an equidigital number, since it uses as much as digits as its factorization.

1440037871977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8297856, while the sum is 58.

The spelling of 1440037871977 in words is "one trillion, four hundred forty billion, thirty-seven million, eight hundred seventy-one thousand, nine hundred seventy-seven".