6499683897 has 8 divisors (see below), whose sum is σ = 9904280256. Its totient is φ = 3714105072.

The previous prime is 6499683829. The next prime is 6499683907. The reversal of 6499683897 is 7983869946.

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

It is not a de Polignac number, because 6499683897 - 2¹⁴ = 6499667513 is a prime.

It is a super-2 number, since 2×6499683897² = 84491781521842213218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6499683097) 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, 154754358 + ... + 154754399.

It is an arithmetic number, because the mean of its divisors is an integer number (1238035032).

Almost surely, 2^6499683897 is an apocalyptic number.

It is an amenable number.

6499683897 is a deficient number, since it is larger than the sum of its proper divisors (3404596359).

6499683897 is a wasteful number, since it uses less digits than its factorization.

6499683897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309508767.

The product of its digits is 141087744, while the sum is 69.

The square root of 6499683897 is about 80620.6170715655. The cubic root of 6499683897 is about 1866.2253251496.

The spelling of 6499683897 in words is "six billion, four hundred ninety-nine million, six hundred eighty-three thousand, eight hundred ninety-seven".