6988191125 has 12 divisors (see below), whose sum is σ = 8722429092. Its totient is φ = 5589805200.

The previous prime is 6988191113. The next prime is 6988191137. The reversal of 6988191125 is 5211918896.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an interprime number because it is at equal distance from previous prime (6988191113) and next prime (6988191137).

It can be written as a sum of positive squares in 6 ways, for example, as 5750404 + 6982440721 = 2398^2 + 83561^2 .

It is not a de Polignac number, because 6988191125 - 2¹⁴ = 6988174741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 930887 + ... + 938363.

It is an arithmetic number, because the mean of its divisors is an integer number (726869091).

Almost surely, 2^6988191125 is an apocalyptic number.

It is an amenable number.

6988191125 is a deficient number, since it is larger than the sum of its proper divisors (1734237967).

6988191125 is an frugal number, since it uses more digits than its factorization.

6988191125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14969 (or 7482 counting only the distinct ones).

The product of its digits is 311040, while the sum is 50.

The square root of 6988191125 is about 83595.4013388296. The cubic root of 6988191125 is about 1911.8548837309.

The spelling of 6988191125 in words is "six billion, nine hundred eighty-eight million, one hundred ninety-one thousand, one hundred twenty-five".