6823544490 has 288 divisors, whose sum is σ = 22667770944. Its totient is φ = 1467486720.

The previous prime is 6823544489. The next prime is 6823544491. The reversal of 6823544490 is 944453286.

6823544490 is a `hidden beast` number, since 68 + 2 + 3 + 544 + 49 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (6823544489) and next prime (6823544491).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6823544491) by changing a digit.

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 143 ways as a sum of consecutive naturals, for example, 2022505 + ... + 2025875.

It is an arithmetic number, because the mean of its divisors is an integer number (78707538).

Almost surely, 2^6823544490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6823544490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11333885472).

6823544490 is an abundant number, since it is smaller than the sum of its proper divisors (15844226454).

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

6823544490 is a wasteful number, since it uses less digits than its factorization.

6823544490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424 (or 3405 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 6823544490 is about 82604.7485923176. The cubic root of 6823544490 is about 1896.7205190950.

The spelling of 6823544490 in words is "six billion, eight hundred twenty-three million, five hundred forty-four thousand, four hundred ninety".