7945509580973 has 2 divisors, whose sum is σ = 7945509580974. Its totient is φ = 7945509580972.

The previous prime is 7945509580843. The next prime is 7945509580997. The reversal of 7945509580973 is 3790859055497.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5097019644964 + 2848489936009 = 2257658^2 + 1687747^2 .

It is an emirp because it is prime and its reverse (3790859055497) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7945509580973 - 2¹⁴ = 7945509564589 is a prime.

It is a super-2 number, since 2×7945509580973² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7945509580897 and 7945509580906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7945509580373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3972754790486 + 3972754790487.

It is an arithmetic number, because the mean of its divisors is an integer number (3972754790487).

Almost surely, 2^{7945509580973} is an apocalyptic number.

It is an amenable number.

7945509580973 is a deficient number, since it is larger than the sum of its proper divisors (1).

7945509580973 is an equidigital number, since it uses as much as digits as its factorization.

7945509580973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652000, while the sum is 71.

The spelling of 7945509580973 in words is "seven trillion, nine hundred forty-five billion, five hundred nine million, five hundred eighty thousand, nine hundred seventy-three".