68822000641 has 2 divisors, whose sum is σ = 68822000642. Its totient is φ = 68822000640.

The previous prime is 68822000603. The next prime is 68822000671. The reversal of 68822000641 is 14600022886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51111714241 + 17710286400 = 226079^2 + 133080^2 .

It is a cyclic number.

It is not a de Polignac number, because 68822000641 - 2¹¹ = 68821998593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68822000641.

It is not a weakly prime, because it can be changed into another prime (68822000671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34411000320 + 34411000321.

It is an arithmetic number, because the mean of its divisors is an integer number (34411000321).

Almost surely, 2^68822000641 is an apocalyptic number.

It is an amenable number.

68822000641 is a deficient number, since it is larger than the sum of its proper divisors (1).

68822000641 is an equidigital number, since it uses as much as digits as its factorization.

68822000641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 68822000641 in words is "sixty-eight billion, eight hundred twenty-two million, six hundred forty-one", and thus it is an aban number.