1438233280573 has 2 divisors, whose sum is σ = 1438233280574. Its totient is φ = 1438233280572.

The previous prime is 1438233280529. The next prime is 1438233280619. The reversal of 1438233280573 is 3750823328341.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1071146341444 + 367086939129 = 1034962^2 + 605877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1438233280573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1438233280513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719116640286 + 719116640287.

It is an arithmetic number, because the mean of its divisors is an integer number (719116640287).

Almost surely, 2^{1438233280573} is an apocalyptic number.

It is an amenable number.

1438233280573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438233280573 is an equidigital number, since it uses as much as digits as its factorization.

1438233280573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 1438233280573 in words is "one trillion, four hundred thirty-eight billion, two hundred thirty-three million, two hundred eighty thousand, five hundred seventy-three".