67550420964127 has 4 divisors (see below), whose sum is σ = 67551078101896. Its totient is φ = 67549763826360.

The previous prime is 67550420964097. The next prime is 67550420964151. The reversal of 67550420964127 is 72146902405576.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67550420964127 - 2⁴³ = 58754327941919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67550420964227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328414668 + ... + 328620289.

It is an arithmetic number, because the mean of its divisors is an integer number (16887769525474).

Almost surely, 2^{67550420964127} is an apocalyptic number.

67550420964127 is a deficient number, since it is larger than the sum of its proper divisors (657137769).

67550420964127 is a wasteful number, since it uses less digits than its factorization.

67550420964127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657137768.

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 67550420964127 in words is "sixty-seven trillion, five hundred fifty billion, four hundred twenty million, nine hundred sixty-four thousand, one hundred twenty-seven".