6698299499 has 4 divisors (see below), whose sum is σ = 6989529936. Its totient is φ = 6407069064.

The previous prime is 6698299493. The next prime is 6698299511. The reversal of 6698299499 is 9949928966.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9949928966 = 2 ⋅4974964483.

It is a cyclic number.

It is not a de Polignac number, because 6698299499 - 2¹² = 6698295403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6698299493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145615184 + ... + 145615229.

It is an arithmetic number, because the mean of its divisors is an integer number (1747382484).

Almost surely, 2^6698299499 is an apocalyptic number.

6698299499 is a deficient number, since it is larger than the sum of its proper divisors (291230437).

6698299499 is a wasteful number, since it uses less digits than its factorization.

6698299499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291230436.

The product of its digits is 136048896, while the sum is 71.

The square root of 6698299499 is about 81843.1395964256. The cubic root of 6698299499 is about 1885.0441254531.

The spelling of 6698299499 in words is "six billion, six hundred ninety-eight million, two hundred ninety-nine thousand, four hundred ninety-nine".