647361420517 has 16 divisors (see below), whose sum is σ = 744257711232. Its totient is φ = 551570356800.

The previous prime is 647361420473. The next prime is 647361420593. The reversal of 647361420517 is 715024163746.

It is a cyclic number.

It is not a de Polignac number, because 647361420517 - 2⁷ = 647361420389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647361450517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6796063 + ... + 6890659.

It is an arithmetic number, because the mean of its divisors is an integer number (46516106952).

Almost surely, 2^647361420517 is an apocalyptic number.

It is an amenable number.

647361420517 is a deficient number, since it is larger than the sum of its proper divisors (96896290715).

647361420517 is a wasteful number, since it uses less digits than its factorization.

647361420517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100428.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 647361420517 in words is "six hundred forty-seven billion, three hundred sixty-one million, four hundred twenty thousand, five hundred seventeen".