6998949888 has 192 divisors, whose sum is σ = 21725638920. Its totient is φ = 1998323712.

The previous prime is 6998949883. The next prime is 6998949899. The reversal of 6998949888 is 8889498996.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6998949883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4816170 + ... + 4817622.

Almost surely, 2^6998949888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6998949888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10862819460).

6998949888 is an abundant number, since it is smaller than the sum of its proper divisors (14726689032).

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

6998949888 is an equidigital number, since it uses as much as digits as its factorization.

6998949888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500 (or 1465 counting only the distinct ones).

The product of its digits is 644972544, while the sum is 78.

The square root of 6998949888 is about 83659.7267985020. The cubic root of 6998949888 is about 1912.8355212272.

The spelling of 6998949888 in words is "six billion, nine hundred ninety-eight million, nine hundred forty-nine thousand, eight hundred eighty-eight".