67128882894 has 32 divisors (see below), whose sum is σ = 149190336000. Its totient is φ = 22374038232.

The previous prime is 67128882809. The next prime is 67128882901. The reversal of 67128882894 is 49828882176.

67128882894 is a `hidden beast` number, since 6 + 71 + 288 + 8 + 289 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529147 + ... + 643625.

It is an arithmetic number, because the mean of its divisors is an integer number (4662198000).

Almost surely, 2^67128882894 is an apocalyptic number.

67128882894 is an abundant number, since it is smaller than the sum of its proper divisors (82061453106).

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

67128882894 is a wasteful number, since it uses less digits than its factorization.

67128882894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125349 (or 125343 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 63.

The spelling of 67128882894 in words is "sixty-seven billion, one hundred twenty-eight million, eight hundred eighty-two thousand, eight hundred ninety-four".