6503999149 has 8 divisors (see below), whose sum is σ = 6563340000. Its totient is φ = 6444867792.

The previous prime is 6503999141. The next prime is 6503999171. The reversal of 6503999149 is 9419993056.

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 6503999149 - 2³ = 6503999141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6503999149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6503999141) 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, 10342 + ... + 114520.

It is an arithmetic number, because the mean of its divisors is an integer number (820417500).

Almost surely, 2^6503999149 is an apocalyptic number.

It is an amenable number.

6503999149 is a deficient number, since it is larger than the sum of its proper divisors (59340851).

6503999149 is a wasteful number, since it uses less digits than its factorization.

6503999149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104747.

The product of its (nonzero) digits is 2361960, while the sum is 55.

The square root of 6503999149 is about 80647.3753385688. The cubic root of 6503999149 is about 1866.6382401531.

The spelling of 6503999149 in words is "six billion, five hundred three million, nine hundred ninety-nine thousand, one hundred forty-nine".