7865120565941 has 2 divisors, whose sum is σ = 7865120565942. Its totient is φ = 7865120565940.

The previous prime is 7865120565899. The next prime is 7865120565949. The reversal of 7865120565941 is 1495650215687.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7471557562225 + 393563003716 = 2733415^2 + 627346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7865120565941 is a prime.

It is a super-2 number, since 2×7865120565941² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7865120565949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3932560282970 + 3932560282971.

It is an arithmetic number, because the mean of its divisors is an integer number (3932560282971).

Almost surely, 2^{7865120565941} is an apocalyptic number.

It is an amenable number.

7865120565941 is a deficient number, since it is larger than the sum of its proper divisors (1).

7865120565941 is an equidigital number, since it uses as much as digits as its factorization.

7865120565941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144000, while the sum is 59.

The spelling of 7865120565941 in words is "seven trillion, eight hundred sixty-five billion, one hundred twenty million, five hundred sixty-five thousand, nine hundred forty-one".