67340450287687 has 2 divisors, whose sum is σ = 67340450287688. Its totient is φ = 67340450287686.

The previous prime is 67340450287651. The next prime is 67340450287727. The reversal of 67340450287687 is 78678205404376.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67340450287687 - 2¹⁹ = 67340449763399 is a prime.

It is a super-2 number, since 2×67340450287687² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67340450288687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33670225143843 + 33670225143844.

It is an arithmetic number, because the mean of its divisors is an integer number (33670225143844).

Almost surely, 2^{67340450287687} is an apocalyptic number.

67340450287687 is a deficient number, since it is larger than the sum of its proper divisors (1).

67340450287687 is an equidigital number, since it uses as much as digits as its factorization.

67340450287687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 379330560, while the sum is 67.

The spelling of 67340450287687 in words is "sixty-seven trillion, three hundred forty billion, four hundred fifty million, two hundred eighty-seven thousand, six hundred eighty-seven".