728214481543 has 4 divisors (see below), whose sum is σ = 745149702088. Its totient is φ = 711279261000.

The previous prime is 728214481517. The next prime is 728214481549. The reversal of 728214481543 is 345184412827.

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 728214481543 - 2³⁷ = 590775528071 is a prime.

It is a super-2 number, since 2×728214481543² (a number of 25 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 (728214481549) 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, 8467610208 + ... + 8467610293.

It is an arithmetic number, because the mean of its divisors is an integer number (186287425522).

Almost surely, 2^728214481543 is an apocalyptic number.

728214481543 is a deficient number, since it is larger than the sum of its proper divisors (16935220545).

728214481543 is a wasteful number, since it uses less digits than its factorization.

728214481543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16935220544.

The product of its digits is 1720320, while the sum is 49.

The spelling of 728214481543 in words is "seven hundred twenty-eight billion, two hundred fourteen million, four hundred eighty-one thousand, five hundred forty-three".