4581730645647 has 16 divisors (see below), whose sum is σ = 6470863394400. Its totient is φ = 2873683484672.

The previous prime is 4581730645631. The next prime is 4581730645669. The reversal of 4581730645647 is 7465460371854.

It is a cyclic number.

It is not a de Polignac number, because 4581730645647 - 2⁴ = 4581730645631 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4581730645627) 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, 17492178 + ... + 17752175.

It is an arithmetic number, because the mean of its divisors is an integer number (404428962150).

Almost surely, 2^{4581730645647} is an apocalyptic number.

4581730645647 is a deficient number, since it is larger than the sum of its proper divisors (1889132748753).

4581730645647 is a wasteful number, since it uses less digits than its factorization.

4581730645647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35246922.

The product of its (nonzero) digits is 67737600, while the sum is 60.

The spelling of 4581730645647 in words is "four trillion, five hundred eighty-one billion, seven hundred thirty million, six hundred forty-five thousand, six hundred forty-seven".