67856136083 has 4 divisors (see below), whose sum is σ = 67937014320. Its totient is φ = 67775257848.

The previous prime is 67856136067. The next prime is 67856136091. The reversal of 67856136083 is 38063165876.

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 67856136083 - 2⁴ = 67856136067 is a prime.

It is a super-2 number, since 2×67856136083² (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 (67856136043) 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, 40437860 + ... + 40439537.

It is an arithmetic number, because the mean of its divisors is an integer number (16984253580).

Almost surely, 2^67856136083 is an apocalyptic number.

67856136083 is a deficient number, since it is larger than the sum of its proper divisors (80878237).

67856136083 is an equidigital number, since it uses as much as digits as its factorization.

67856136083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80878236.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 67856136083 in words is "sixty-seven billion, eight hundred fifty-six million, one hundred thirty-six thousand, eighty-three".