7384454138909 has 2 divisors, whose sum is σ = 7384454138910. Its totient is φ = 7384454138908.

The previous prime is 7384454138879. The next prime is 7384454138921. The reversal of 7384454138909 is 9098314544837.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6893407780900 + 491046358009 = 2625530^2 + 700747^2 .

It is a cyclic number.

It is not a de Polignac number, because 7384454138909 - 2⁸ = 7384454138653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7384454138309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3692227069454 + 3692227069455.

It is an arithmetic number, because the mean of its divisors is an integer number (3692227069455).

Almost surely, 2^{7384454138909} is an apocalyptic number.

It is an amenable number.

7384454138909 is a deficient number, since it is larger than the sum of its proper divisors (1).

7384454138909 is an equidigital number, since it uses as much as digits as its factorization.

7384454138909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104509440, while the sum is 65.

The spelling of 7384454138909 in words is "seven trillion, three hundred eighty-four billion, four hundred fifty-four million, one hundred thirty-eight thousand, nine hundred nine".