67680680 has 16 divisors (see below), whose sum is σ = 152281620. Its totient is φ = 27072256.

The previous prime is 67680671. The next prime is 67680703. The reversal of 67680680 is 8608676.

It can be written as a sum of positive squares in 2 ways, for example, as 63075364 + 4605316 = 7942^2 + 2146^2 .

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, 845969 + ... + 846048.

Almost surely, 2^67680680 is an apocalyptic number.

It is an amenable number.

67680680 is an abundant number, since it is smaller than the sum of its proper divisors (84600940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67680680 is a wasteful number, since it uses less digits than its factorization.

67680680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692028 (or 1692024 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 67680680 is about 8226.8268487917. The cubic root of 67680680 is about 407.5256084375.

The spelling of 67680680 in words is "sixty-seven million, six hundred eighty thousand, six hundred eighty".