6698924993 has 4 divisors (see below), whose sum is σ = 6841455360. Its totient is φ = 6556394628.

The previous prime is 6698924989. The next prime is 6698925011. The reversal of 6698924993 is 3994298966.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6698924993 - 2² = 6698924989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6698924963) 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, 71265113 + ... + 71265206.

It is an arithmetic number, because the mean of its divisors is an integer number (1710363840).

Almost surely, 2^6698924993 is an apocalyptic number.

It is an amenable number.

6698924993 is a deficient number, since it is larger than the sum of its proper divisors (142530367).

6698924993 is a wasteful number, since it uses less digits than its factorization.

6698924993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142530366.

The product of its digits is 45349632, while the sum is 65.

The square root of 6698924993 is about 81846.9608049071. The cubic root of 6698924993 is about 1885.1027994042.

The spelling of 6698924993 in words is "six billion, six hundred ninety-eight million, nine hundred twenty-four thousand, nine hundred ninety-three".