6539570380 has 36 divisors (see below), whose sum is σ = 15975238608. Its totient is φ = 2242138080.

The previous prime is 6539570357. The next prime is 6539570393. The reversal of 6539570380 is 830759356.

It is a super-3 number, since 3×6539570380³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6539570380.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3335536 + ... + 3337495.

It is an arithmetic number, because the mean of its divisors is an integer number (443756628).

Almost surely, 2^6539570380 is an apocalyptic number.

It is an amenable number.

6539570380 is an abundant number, since it is smaller than the sum of its proper divisors (9435668228).

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

6539570380 is a wasteful number, since it uses less digits than its factorization.

6539570380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673054 (or 6673045 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 6539570380 is about 80867.6102033441. The cubic root of 6539570380 is about 1870.0350189330.

The spelling of 6539570380 in words is "six billion, five hundred thirty-nine million, five hundred seventy thousand, three hundred eighty".