6989125500 has 480 divisors, whose sum is σ = 26447541120. Its totient is φ = 1573862400.

The previous prime is 6989125499. The next prime is 6989125531. The reversal of 6989125500 is 55219896.

6989125500 is a `hidden beast` number, since 6 + 9 + 8 + 91 + 2 + 550 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 25231362 + ... + 25231638.

It is an arithmetic number, because the mean of its divisors is an integer number (55099044).

Almost surely, 2^6989125500 is an apocalyptic number.

6989125500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6989125500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13223770560).

6989125500 is an abundant number, since it is smaller than the sum of its proper divisors (19458415620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6989125500 is a wasteful number, since it uses less digits than its factorization.

6989125500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 6989125500 is about 83600.9898266761. The cubic root of 6989125500 is about 1911.9400898433.

The spelling of 6989125500 in words is "six billion, nine hundred eighty-nine million, one hundred twenty-five thousand, five hundred".