6542587368 has 24 divisors (see below), whose sum is σ = 17719507650. Its totient is φ = 2180862432.

The previous prime is 6542587301. The next prime is 6542587379. The reversal of 6542587368 is 8637852456.

6542587368 is a `hidden beast` number, since 6 + 54 + 2 + 587 + 3 + 6 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3689104644 + 2853482724 = 60738^2 + 53418^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45434563 + ... + 45434706.

Almost surely, 2^6542587368 is an apocalyptic number.

It is an amenable number.

6542587368 is an abundant number, since it is smaller than the sum of its proper divisors (11176920282).

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

6542587368 is a wasteful number, since it uses less digits than its factorization.

6542587368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90869281 (or 90869274 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The square root of 6542587368 is about 80886.2619237655. The cubic root of 6542587368 is about 1870.3225508600.

The spelling of 6542587368 in words is "six billion, five hundred forty-two million, five hundred eighty-seven thousand, three hundred sixty-eight".