67939936219 has 4 divisors (see below), whose sum is σ = 68052981640. Its totient is φ = 67826890800.

The previous prime is 67939936213. The next prime is 67939936277. The reversal of 67939936219 is 91263993976.

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 67939936219 - 2⁷ = 67939936091 is a prime.

It is a super-2 number, since 2×67939936219² (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 (67939936213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56521809 + ... + 56523010.

It is an arithmetic number, because the mean of its divisors is an integer number (17013245410).

Almost surely, 2^67939936219 is an apocalyptic number.

67939936219 is a deficient number, since it is larger than the sum of its proper divisors (113045421).

67939936219 is a wasteful number, since it uses less digits than its factorization.

67939936219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113045420.

The product of its digits is 29760696, while the sum is 64.

The spelling of 67939936219 in words is "sixty-seven billion, nine hundred thirty-nine million, nine hundred thirty-six thousand, two hundred nineteen".