1438226134907 has 2 divisors, whose sum is σ = 1438226134908. Its totient is φ = 1438226134906.

The previous prime is 1438226134889. The next prime is 1438226135119. The reversal of 1438226134907 is 7094316228341.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1438226134907 is a prime.

It is not a weakly prime, because it can be changed into another prime (1438226134207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719113067453 + 719113067454.

It is an arithmetic number, because the mean of its divisors is an integer number (719113067454).

Almost surely, 2^{1438226134907} is an apocalyptic number.

1438226134907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438226134907 is an equidigital number, since it uses as much as digits as its factorization.

1438226134907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 1438226134907 in words is "one trillion, four hundred thirty-eight billion, two hundred twenty-six million, one hundred thirty-four thousand, nine hundred seven".