6725667543 has 16 divisors (see below), whose sum is σ = 10307882496. Its totient is φ = 3821021280.

The previous prime is 6725667479. The next prime is 6725667569. The reversal of 6725667543 is 3457665276.

It is not a de Polignac number, because 6725667543 - 2⁶ = 6725667479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6725667583) 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, 922003 + ... + 929268.

It is an arithmetic number, because the mean of its divisors is an integer number (644242656).

Almost surely, 2^6725667543 is an apocalyptic number.

6725667543 is a deficient number, since it is larger than the sum of its proper divisors (3582214953).

6725667543 is a wasteful number, since it uses less digits than its factorization.

6725667543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851454.

The product of its digits is 6350400, while the sum is 51.

The square root of 6725667543 is about 82010.1673147909. The cubic root of 6725667543 is about 1887.6079536402.

The spelling of 6725667543 in words is "six billion, seven hundred twenty-five million, six hundred sixty-seven thousand, five hundred forty-three".