67334051819 has 4 divisors (see below), whose sum is σ = 67653170760. Its totient is φ = 67014932880.

The previous prime is 67334051767. The next prime is 67334051839. The reversal of 67334051819 is 91815043376.

It is a happy number.

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 67334051819 - 2²⁴ = 67317274603 is a prime.

It is a super-2 number, since 2×67334051819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67334051839) 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, 159559154 + ... + 159559575.

It is an arithmetic number, because the mean of its divisors is an integer number (16913292690).

Almost surely, 2^67334051819 is an apocalyptic number.

67334051819 is a deficient number, since it is larger than the sum of its proper divisors (319118941).

67334051819 is a wasteful number, since it uses less digits than its factorization.

67334051819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319118940.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 67334051819 in words is "sixty-seven billion, three hundred thirty-four million, fifty-one thousand, eight hundred nineteen".