7240173040769 has 2 divisors, whose sum is σ = 7240173040770. Its totient is φ = 7240173040768.

The previous prime is 7240173040747. The next prime is 7240173040873. The reversal of 7240173040769 is 9670403710427.

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., 5268218467600 + 1971954573169 = 2295260^2 + 1404263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7240173040769 is a prime.

It is a super-2 number, since 2×7240173040769² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7240173040739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3620086520384 + 3620086520385.

It is an arithmetic number, because the mean of its divisors is an integer number (3620086520385).

Almost surely, 2^{7240173040769} is an apocalyptic number.

It is an amenable number.

7240173040769 is a deficient number, since it is larger than the sum of its proper divisors (1).

7240173040769 is an equidigital number, since it uses as much as digits as its factorization.

7240173040769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 7240173040769 in words is "seven trillion, two hundred forty billion, one hundred seventy-three million, forty thousand, seven hundred sixty-nine".