649594729543 has 8 divisors (see below), whose sum is σ = 700783660368. Its totient is φ = 599847740544.

The previous prime is 649594729523. The next prime is 649594729559. The reversal of 649594729543 is 345927495946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 649594729543 - 2¹³ = 649594721351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649594729513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360484521 + ... + 360486322.

It is an arithmetic number, because the mean of its divisors is an integer number (87597957546).

Almost surely, 2^649594729543 is an apocalyptic number.

649594729543 is a deficient number, since it is larger than the sum of its proper divisors (51188930825).

649594729543 is a wasteful number, since it uses less digits than its factorization.

649594729543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720970913.

The product of its digits is 293932800, while the sum is 67.

The spelling of 649594729543 in words is "six hundred forty-nine billion, five hundred ninety-four million, seven hundred twenty-nine thousand, five hundred forty-three".