647054720463 has 16 divisors (see below), whose sum is σ = 868335557600. Its totient is φ = 428580775296.

The previous prime is 647054720453. The next prime is 647054720479. The reversal of 647054720463 is 364027450746.

It is not a de Polignac number, because 647054720463 - 2¹⁶ = 647054654927 is a prime.

It is a super-2 number, since 2×647054720463² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647054720423) 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, 825520 + ... + 1405557.

It is an arithmetic number, because the mean of its divisors is an integer number (54270972350).

Almost surely, 2^647054720463 is an apocalyptic number.

647054720463 is a deficient number, since it is larger than the sum of its proper divisors (221280837137).

647054720463 is a wasteful number, since it uses less digits than its factorization.

647054720463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231706.

The product of its (nonzero) digits is 3386880, while the sum is 48.

The spelling of 647054720463 in words is "six hundred forty-seven billion, fifty-four million, seven hundred twenty thousand, four hundred sixty-three".