67305719870138 has 4 divisors (see below), whose sum is σ = 100958579805210. Its totient is φ = 33652859935068.

The previous prime is 67305719870113. The next prime is 67305719870153. The reversal of 67305719870138 is 83107891750376.

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

It can be written as a sum of positive squares in only one way, i.e., 61194901262089 + 6110818608049 = 7822717^2 + 2472007^2 .

It is a super-3 number, since 3×67305719870138³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16826429967533 + ... + 16826429967536.

Almost surely, 2^{67305719870138} is an apocalyptic number.

67305719870138 is a deficient number, since it is larger than the sum of its proper divisors (33652859935072).

67305719870138 is a wasteful number, since it uses less digits than its factorization.

67305719870138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33652859935071.

The product of its (nonzero) digits is 53343360, while the sum is 65.

The spelling of 67305719870138 in words is "sixty-seven trillion, three hundred five billion, seven hundred nineteen million, eight hundred seventy thousand, one hundred thirty-eight".