647012276352 has 216 divisors, whose sum is σ = 2017187441685. Its totient is φ = 198971495424.

The previous prime is 647012276333. The next prime is 647012276387. The reversal of 647012276352 is 253672210746.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

647012276352 is a `hidden beast` number, since 6 + 4 + 7 + 0 + 1 + 2 + 2 + 7 + 635 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 553214638656 + 93797637696 = 743784^2 + 306264^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=568776.

It is a junction number, because it is equal to n+sod(n) for n = 647012276298 and 647012276307.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 354915313 + ... + 354917135.

Almost surely, 2^647012276352 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 647012276352

647012276352 is an abundant number, since it is smaller than the sum of its proper divisors (1370175165333).

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

647012276352 is an equidigital number, since it uses as much as digits as its factorization.

647012276352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3692 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 647012276352 in words is "six hundred forty-seven billion, twelve million, two hundred seventy-six thousand, three hundred fifty-two".