6543570000 has 400 divisors, whose sum is σ = 23428500480. Its totient is φ = 1560000000.

The previous prime is 6543569969. The next prime is 6543570001. The reversal of 6543570000 is 753456.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 6543570000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543570001) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 26069875 + ... + 26070125.

Almost surely, 2^6543570000 is an apocalyptic number.

6543570000 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 6543570000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11714250240).

6543570000 is an abundant number, since it is smaller than the sum of its proper divisors (16884930480).

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

6543570000 is a wasteful number, since it uses less digits than its factorization.

6543570000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 6543570000 is about 80892.3358545171. The cubic root of 6543570000 is about 1870.4161808306.

The spelling of 6543570000 in words is "six billion, five hundred forty-three million, five hundred seventy thousand".