67871635855 has 4 divisors (see below), whose sum is σ = 81445963032. Its totient is φ = 54297308680.

The previous prime is 67871635823. The next prime is 67871635877. The reversal of 67871635855 is 55853617876.

It is a happy number.

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

It is not a de Polignac number, because 67871635855 - 2⁵ = 67871635823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67871635793 and 67871635802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6787163581 + ... + 6787163590.

It is an arithmetic number, because the mean of its divisors is an integer number (20361490758).

Almost surely, 2^67871635855 is an apocalyptic number.

67871635855 is a deficient number, since it is larger than the sum of its proper divisors (13574327177).

67871635855 is a wasteful number, since it uses less digits than its factorization.

67871635855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13574327176.

The product of its digits is 42336000, while the sum is 61.

The spelling of 67871635855 in words is "sixty-seven billion, eight hundred seventy-one million, six hundred thirty-five thousand, eight hundred fifty-five".