67886773081 has 12 divisors (see below), whose sum is σ = 72160055280. Its totient is φ = 63853528640.

The previous prime is 67886773079. The next prime is 67886773093. The reversal of 67886773081 is 18037768876.

It is not a de Polignac number, because 67886773081 - 2¹ = 67886773079 is a prime.

It is a super-2 number, since 2×67886773081² (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 (67886773681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395346 + ... + 540436.

It is an arithmetic number, because the mean of its divisors is an integer number (6013337940).

Almost surely, 2^67886773081 is an apocalyptic number.

It is an amenable number.

67886773081 is a deficient number, since it is larger than the sum of its proper divisors (4273282199).

67886773081 is a wasteful number, since it uses less digits than its factorization.

67886773081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146744 (or 146727 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 61.

The spelling of 67886773081 in words is "sixty-seven billion, eight hundred eighty-six million, seven hundred seventy-three thousand, eighty-one".