6539247360 has 324 divisors, whose sum is σ = 23238967752. Its totient is φ = 1697697792.

The previous prime is 6539247329. The next prime is 6539247361. The reversal of 6539247360 is 637429356.

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 (6539247361) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 21300327 + ... + 21300633.

Almost surely, 2^6539247360 is an apocalyptic number.

6539247360 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 6539247360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11619483876).

6539247360 is an abundant number, since it is smaller than the sum of its proper divisors (16699720392).

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

6539247360 is a wasteful number, since it uses less digits than its factorization.

6539247360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The square root of 6539247360 is about 80865.6129637314. The cubic root of 6539247360 is about 1870.0042284976.

The spelling of 6539247360 in words is "six billion, five hundred thirty-nine million, two hundred forty-seven thousand, three hundred sixty".