7481370381409 has 2 divisors, whose sum is σ = 7481370381410. Its totient is φ = 7481370381408.

The previous prime is 7481370381311. The next prime is 7481370381431. The reversal of 7481370381409 is 9041830731847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6739527523600 + 741842857809 = 2596060^2 + 861303^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7481370381409 is a prime.

It is a super-2 number, since 2×7481370381409² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7481370381409.

It is not a weakly prime, because it can be changed into another prime (7481370381479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3740685190704 + 3740685190705.

It is an arithmetic number, because the mean of its divisors is an integer number (3740685190705).

Almost surely, 2^{7481370381409} is an apocalyptic number.

It is an amenable number.

7481370381409 is a deficient number, since it is larger than the sum of its proper divisors (1).

7481370381409 is an equidigital number, since it uses as much as digits as its factorization.

7481370381409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 7481370381409 in words is "seven trillion, four hundred eighty-one billion, three hundred seventy million, three hundred eighty-one thousand, four hundred nine".