67864040653 has 2 divisors, whose sum is σ = 67864040654. Its totient is φ = 67864040652.

The previous prime is 67864040639. The next prime is 67864040669. The reversal of 67864040653 is 35604046876.

67864040653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45745509924 + 22118530729 = 213882^2 + 148723^2 .

It is a cyclic number.

It is not a de Polignac number, because 67864040653 - 2³³ = 59274106061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67864040597 and 67864040606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67864040753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33932020326 + 33932020327.

It is an arithmetic number, because the mean of its divisors is an integer number (33932020327).

Almost surely, 2^67864040653 is an apocalyptic number.

It is an amenable number.

67864040653 is a deficient number, since it is larger than the sum of its proper divisors (1).

67864040653 is an equidigital number, since it uses as much as digits as its factorization.

67864040653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 67864040653 in words is "sixty-seven billion, eight hundred sixty-four million, forty thousand, six hundred fifty-three".