4643221072547 has 4 divisors (see below), whose sum is σ = 4645625642616. Its totient is φ = 4640816502480.

The previous prime is 4643221072537. The next prime is 4643221072549. The reversal of 4643221072547 is 7452701223464.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4643221072547 - 2⁸ = 4643221072291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4643221072549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1202282138 + ... + 1202285999.

It is an arithmetic number, because the mean of its divisors is an integer number (1161406410654).

Almost surely, 2^{4643221072547} is an apocalyptic number.

4643221072547 is a deficient number, since it is larger than the sum of its proper divisors (2404570069).

4643221072547 is a wasteful number, since it uses less digits than its factorization.

4643221072547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404570068.

The product of its (nonzero) digits is 2257920, while the sum is 47.

The spelling of 4643221072547 in words is "four trillion, six hundred forty-three billion, two hundred twenty-one million, seventy-two thousand, five hundred forty-seven".