6989449896 has 192 divisors, whose sum is σ = 23410296000. Its totient is φ = 1852139520.

The previous prime is 6989449879. The next prime is 6989449963.

It is a happy number.

6989449896 is a `hidden beast` number, since 6 + 98 + 9 + 449 + 8 + 96 = 666.

6989449896 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 177760 + ... + 213488.

It is an arithmetic number, because the mean of its divisors is an integer number (121928625).

Almost surely, 2^6989449896 is an apocalyptic number.

6989449896 is a gapful number since it is divisible by the number (66) 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 6989449896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11705148000).

6989449896 is an abundant number, since it is smaller than the sum of its proper divisors (16420846104).

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

6989449896 is a wasteful number, since it uses less digits than its factorization.

6989449896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35784 (or 35777 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 72.

The square root of 6989449896 is about 83602.9299486567. The cubic root of 6989449896 is about 1911.9696698970.

The spelling of 6989449896 in words is "six billion, nine hundred eighty-nine million, four hundred forty-nine thousand, eight hundred ninety-six".