6499541623 has 8 divisors (see below), whose sum is σ = 6714490880. Its totient is φ = 6284922840.

The previous prime is 6499541621. The next prime is 6499541627. The reversal of 6499541623 is 3261459946.

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 6499541623 - 2¹ = 6499541621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6499541621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42315 + ... + 121612.

It is an arithmetic number, because the mean of its divisors is an integer number (839311360).

Almost surely, 2^6499541623 is an apocalyptic number.

6499541623 is a deficient number, since it is larger than the sum of its proper divisors (214949257).

6499541623 is a wasteful number, since it uses less digits than its factorization.

6499541623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165237.

The product of its digits is 1399680, while the sum is 49.

The square root of 6499541623 is about 80619.7346993898. The cubic root of 6499541623 is about 1866.2117082167.

The spelling of 6499541623 in words is "six billion, four hundred ninety-nine million, five hundred forty-one thousand, six hundred twenty-three".