6698925009 has 24 divisors (see below), whose sum is σ = 11060704512. Its totient is φ = 3827208960.

The previous prime is 6698924989. The next prime is 6698925011. The reversal of 6698925009 is 9005298966.

It is not a de Polignac number, because 6698925009 - 2¹⁹ = 6698400721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6698925029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567649 + ... + 579329.

It is an arithmetic number, because the mean of its divisors is an integer number (460862688).

Almost surely, 2^6698925009 is an apocalyptic number.

It is an amenable number.

6698925009 is a deficient number, since it is larger than the sum of its proper divisors (4361779503).

6698925009 is a wasteful number, since it uses less digits than its factorization.

6698925009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20797 (or 20794 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The square root of 6698925009 is about 81846.9609026505. The cubic root of 6698925009 is about 1885.1028009050.

The spelling of 6698925009 in words is "six billion, six hundred ninety-eight million, nine hundred twenty-five thousand, nine".