6539809352 has 16 divisors (see below), whose sum is σ = 12657696000. Its totient is φ = 3164423760.

The previous prime is 6539809349. The next prime is 6539809387. The reversal of 6539809352 is 2539089356.

It is a self number, because there is not a number n which added to its sum of digits gives 6539809352.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13184852 + ... + 13185347.

It is an arithmetic number, because the mean of its divisors is an integer number (791106000).

Almost surely, 2^6539809352 is an apocalyptic number.

6539809352 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6539809352 is a deficient number, since it is larger than the sum of its proper divisors (6117886648).

6539809352 is a wasteful number, since it uses less digits than its factorization.

6539809352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26370236 (or 26370232 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 50.

The square root of 6539809352 is about 80869.0877406194. The cubic root of 6539809352 is about 1870.0577972165.

The spelling of 6539809352 in words is "six billion, five hundred thirty-nine million, eight hundred nine thousand, three hundred fifty-two".