1438056305839 has 2 divisors, whose sum is σ = 1438056305840. Its totient is φ = 1438056305838.

The previous prime is 1438056305831. The next prime is 1438056305843. The reversal of 1438056305839 is 9385036508341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1438056305839 - 2³ = 1438056305831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1438056305839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1438056305831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719028152919 + 719028152920.

It is an arithmetic number, because the mean of its divisors is an integer number (719028152920).

Almost surely, 2^{1438056305839} is an apocalyptic number.

1438056305839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438056305839 is an equidigital number, since it uses as much as digits as its factorization.

1438056305839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9331200, while the sum is 55.

The spelling of 1438056305839 in words is "one trillion, four hundred thirty-eight billion, fifty-six million, three hundred five thousand, eight hundred thirty-nine".