6539039268 has 24 divisors (see below), whose sum is σ = 15280116768. Its totient is φ = 2176485696.

The previous prime is 6539039257. The next prime is 6539039279. The reversal of 6539039268 is 8629309356.

It is an interprime number because it is at equal distance from previous prime (6539039257) and next prime (6539039279).

It is a self number, because there is not a number n which added to its sum of digits gives 6539039268.

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, 390721 + ... + 407112.

It is an arithmetic number, because the mean of its divisors is an integer number (636671532).

Almost surely, 2^6539039268 is an apocalyptic number.

It is an amenable number.

6539039268 is an abundant number, since it is smaller than the sum of its proper divisors (8741077500).

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

6539039268 is a wasteful number, since it uses less digits than its factorization.

6539039268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798523 (or 798521 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 51.

The square root of 6539039268 is about 80864.3263002914. The cubic root of 6539039268 is about 1869.9843925223.

The spelling of 6539039268 in words is "six billion, five hundred thirty-nine million, thirty-nine thousand, two hundred sixty-eight".