647313527220 has 24 divisors (see below), whose sum is σ = 1812477876384. Its totient is φ = 172616940576.

The previous prime is 647313527207. The next prime is 647313527221. The reversal of 647313527220 is 22725313746.

647313527220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×647313527220³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647313527221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5394279334 + ... + 5394279453.

It is an arithmetic number, because the mean of its divisors is an integer number (75519911516).

Almost surely, 2^647313527220 is an apocalyptic number.

647313527220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

647313527220 is an abundant number, since it is smaller than the sum of its proper divisors (1165164349164).

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

647313527220 is a wasteful number, since it uses less digits than its factorization.

647313527220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10788558799 (or 10788558797 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 647313527220 in words is "six hundred forty-seven billion, three hundred thirteen million, five hundred twenty-seven thousand, two hundred twenty".