67061820934443 has 4 divisors (see below), whose sum is σ = 89415761245928. Its totient is φ = 44707880622960.

The previous prime is 67061820934439. The next prime is 67061820934483. The reversal of 67061820934443 is 34443902816076.

67061820934443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 67061820934443 - 2² = 67061820934439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67061820934483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11176970155738 + ... + 11176970155743.

It is an arithmetic number, because the mean of its divisors is an integer number (22353940311482).

Almost surely, 2^{67061820934443} is an apocalyptic number.

67061820934443 is a deficient number, since it is larger than the sum of its proper divisors (22353940311485).

67061820934443 is a wasteful number, since it uses less digits than its factorization.

67061820934443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22353940311484.

The product of its (nonzero) digits is 20901888, while the sum is 57.

The spelling of 67061820934443 in words is "sixty-seven trillion, sixty-one billion, eight hundred twenty million, nine hundred thirty-four thousand, four hundred forty-three".