68382040369 has 2 divisors, whose sum is σ = 68382040370. Its totient is φ = 68382040368.

The previous prime is 68382040297. The next prime is 68382040399. The reversal of 68382040369 is 96304028386.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67814409744 + 567630625 = 260412^2 + 23825^2 .

It is a cyclic number.

It is not a de Polignac number, because 68382040369 - 2⁹ = 68382039857 is a prime.

It is a super-2 number, since 2×68382040369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68382040399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34191020184 + 34191020185.

It is an arithmetic number, because the mean of its divisors is an integer number (34191020185).

Almost surely, 2^68382040369 is an apocalyptic number.

It is an amenable number.

68382040369 is a deficient number, since it is larger than the sum of its proper divisors (1).

68382040369 is an equidigital number, since it uses as much as digits as its factorization.

68382040369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 49.

The spelling of 68382040369 in words is "sixty-eight billion, three hundred eighty-two million, forty thousand, three hundred sixty-nine".