42179648256 has 108 divisors (see below), whose sum is σ = 121676908080. Its totient is φ = 14052648960.

The previous prime is 42179648233. The next prime is 42179648261. The reversal of 42179648256 is 65284697124.

42179648256 is a `hidden beast` number, since 4 + 21 + 7 + 96 + 482 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6311925 + ... + 6318603.

Almost surely, 2^42179648256 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 42179648256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60838454040).

42179648256 is an abundant number, since it is smaller than the sum of its proper divisors (79497259824).

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

42179648256 is a wasteful number, since it uses less digits than its factorization.

42179648256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9442 (or 9425 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 42179648256 in words is "forty-two billion, one hundred seventy-nine million, six hundred forty-eight thousand, two hundred fifty-six".