6521827488 has 48 divisors (see below), whose sum is σ = 18676145376. Its totient is φ = 1976311040.

The previous prime is 6521827471. The next prime is 6521827493. The reversal of 6521827488 is 8847281256.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 6521827488.

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 7 ways as a sum of consecutive naturals, for example, 3086931 + ... + 3089042.

It is an arithmetic number, because the mean of its divisors is an integer number (389086362).

Almost surely, 2^6521827488 is an apocalyptic number.

It is an amenable number.

6521827488 is an abundant number, since it is smaller than the sum of its proper divisors (12154317888).

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

6521827488 is a wasteful number, since it uses less digits than its factorization.

6521827488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6175997 (or 6175989 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 51.

The square root of 6521827488 is about 80757.8323631832. The cubic root of 6521827488 is about 1868.3422531935.

The spelling of 6521827488 in words is "six billion, five hundred twenty-one million, eight hundred twenty-seven thousand, four hundred eighty-eight".