67028975860 has 96 divisors (see below), whose sum is σ = 175581520128. Its totient is φ = 20881735680.

The previous prime is 67028975843. The next prime is 67028975869. The reversal of 67028975860 is 6857982076.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 67028975795 and 67028975804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67028975869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3435252 + ... + 3454708.

It is an arithmetic number, because the mean of its divisors is an integer number (1828974168).

Almost surely, 2^67028975860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67028975860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87790760064).

67028975860 is an abundant number, since it is smaller than the sum of its proper divisors (108552544268).

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

67028975860 is a wasteful number, since it uses less digits than its factorization.

67028975860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21721 (or 21719 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 67028975860 in words is "sixty-seven billion, twenty-eight million, nine hundred seventy-five thousand, eight hundred sixty".