67891470328 has 32 divisors (see below), whose sum is σ = 139312643760. Its totient is φ = 30761153280.

The previous prime is 67891470277. The next prime is 67891470331. The reversal of 67891470328 is 82307419876.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1204875 + ... + 1259962.

Almost surely, 2^67891470328 is an apocalyptic number.

It is an amenable number.

67891470328 is an abundant number, since it is smaller than the sum of its proper divisors (71421173432).

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

67891470328 is a wasteful number, since it uses less digits than its factorization.

67891470328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465167 (or 2465163 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 67891470328 in words is "sixty-seven billion, eight hundred ninety-one million, four hundred seventy thousand, three hundred twenty-eight".