67780067683 has 2 divisors, whose sum is σ = 67780067684. Its totient is φ = 67780067682.

The previous prime is 67780067671. The next prime is 67780067699. The reversal of 67780067683 is 38676008776.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67780067683 is a prime.

It is a super-2 number, since 2×67780067683² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67780067623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33890033841 + 33890033842.

It is an arithmetic number, because the mean of its divisors is an integer number (33890033842).

Almost surely, 2^67780067683 is an apocalyptic number.

67780067683 is a deficient number, since it is larger than the sum of its proper divisors (1).

67780067683 is an equidigital number, since it uses as much as digits as its factorization.

67780067683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14224896, while the sum is 58.

The spelling of 67780067683 in words is "sixty-seven billion, seven hundred eighty million, sixty-seven thousand, six hundred eighty-three".