1028307021437 has 2 divisors, whose sum is σ = 1028307021438. Its totient is φ = 1028307021436.

The previous prime is 1028307021431. The next prime is 1028307021517. The reversal of 1028307021437 is 7341207038201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 865655324836 + 162651696601 = 930406^2 + 403301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028307021437 - 2⁴ = 1028307021421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1028307021437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1028307021431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514153510718 + 514153510719.

It is an arithmetic number, because the mean of its divisors is an integer number (514153510719).

Almost surely, 2^{1028307021437} is an apocalyptic number.

It is an amenable number.

1028307021437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028307021437 is an equidigital number, since it uses as much as digits as its factorization.

1028307021437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The spelling of 1028307021437 in words is "one trillion, twenty-eight billion, three hundred seven million, twenty-one thousand, four hundred thirty-seven".