647847758087 has 16 divisors (see below), whose sum is σ = 670848052224. Its totient is φ = 624979800000.

The previous prime is 647847757967. The next prime is 647847758141. The reversal of 647847758087 is 780857748746.

647847758087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 647847758087 - 2¹⁴ = 647847741703 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 647847758087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647847758687) 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, 71970587 + ... + 71979587.

It is an arithmetic number, because the mean of its divisors is an integer number (41928003264).

Almost surely, 2^647847758087 is an apocalyptic number.

647847758087 is a deficient number, since it is larger than the sum of its proper divisors (23000294137).

647847758087 is a wasteful number, since it uses less digits than its factorization.

647847758087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16070.

The product of its (nonzero) digits is 590069760, while the sum is 71.

The spelling of 647847758087 in words is "six hundred forty-seven billion, eight hundred forty-seven million, seven hundred fifty-eight thousand, eighty-seven".