7681264391041 has 2 divisors, whose sum is σ = 7681264391042. Its totient is φ = 7681264391040.

The previous prime is 7681264391033. The next prime is 7681264391077. The reversal of 7681264391041 is 1401934621867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7593766751041 + 87497640000 = 2755679^2 + 295800^2 .

It is a cyclic number.

It is not a de Polignac number, because 7681264391041 - 2³ = 7681264391033 is a prime.

It is a super-2 number, since 2×7681264391041² (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 7681264391041.

It is not a weakly prime, because it can be changed into another prime (7681264391741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3840632195520 + 3840632195521.

It is an arithmetic number, because the mean of its divisors is an integer number (3840632195521).

Almost surely, 2^{7681264391041} is an apocalyptic number.

It is an amenable number.

7681264391041 is a deficient number, since it is larger than the sum of its proper divisors (1).

7681264391041 is an equidigital number, since it uses as much as digits as its factorization.

7681264391041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 7681264391041 in words is "seven trillion, six hundred eighty-one billion, two hundred sixty-four million, three hundred ninety-one thousand, forty-one".