67667662628 has 12 divisors (see below), whose sum is σ = 118446925212. Its totient is φ = 33825684000.

The previous prime is 67667662627. The next prime is 67667662669. The reversal of 67667662628 is 82626676676.

It is a happy number.

67667662628 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11381049124 + 56286613504 = 106682^2 + 237248^2 .

It is not an unprimeable number, because it can be changed into a prime (67667662627) 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, 2018123 + ... + 2051378.

It is an arithmetic number, because the mean of its divisors is an integer number (9870577101).

Almost surely, 2^67667662628 is an apocalyptic number.

It is an amenable number.

67667662628 is a deficient number, since it is larger than the sum of its proper divisors (50779262584).

67667662628 is a wasteful number, since it uses less digits than its factorization.

67667662628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073662 (or 4073660 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 62.

The spelling of 67667662628 in words is "sixty-seven billion, six hundred sixty-seven million, six hundred sixty-two thousand, six hundred twenty-eight".