647071883660 has 96 divisors (see below), whose sum is σ = 1445518690560. Its totient is φ = 242465107968.

The previous prime is 647071883593. The next prime is 647071883669. The reversal of 647071883660 is 66388170746.

It is a super-3 number, since 3×647071883660³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 647071883596 and 647071883605.

It is not an unprimeable number, because it can be changed into a prime (647071883669) 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, 103877426 + ... + 103883654.

It is an arithmetic number, because the mean of its divisors is an integer number (15057486360).

Almost surely, 2^647071883660 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 647071883660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (722759345280).

647071883660 is an abundant number, since it is smaller than the sum of its proper divisors (798446806900).

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

647071883660 is a wasteful number, since it uses less digits than its factorization.

647071883660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7635 (or 7633 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 647071883660 in words is "six hundred forty-seven billion, seventy-one million, eight hundred eighty-three thousand, six hundred sixty".