6499000993 has 8 divisors (see below), whose sum is σ = 6544512000. Its totient is φ = 6453639408.

The previous prime is 6499000961. The next prime is 6499001051. The reversal of 6499000993 is 3990009946.

It is the 32912-nd star number.

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 6499000993 - 2⁵ = 6499000961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6499000913) 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, 50658 + ... + 124756.

It is an arithmetic number, because the mean of its divisors is an integer number (818064000).

Almost surely, 2^6499000993 is an apocalyptic number.

It is an amenable number.

6499000993 is a deficient number, since it is larger than the sum of its proper divisors (45511007).

6499000993 is a wasteful number, since it uses less digits than its factorization.

6499000993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74711.

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 6499000993 is about 80616.3816665075. The cubic root of 6499000993 is about 1866.1599631312.

The spelling of 6499000993 in words is "six billion, four hundred ninety-nine million, nine hundred ninety-three", and thus it is an aban number.