6545867884 has 24 divisors (see below), whose sum is σ = 12172930560. Its totient is φ = 3069278976.

The previous prime is 6545867869. The next prime is 6545867891. The reversal of 6545867884 is 4887685456.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154924 + ... + 192595.

It is an arithmetic number, because the mean of its divisors is an integer number (507205440).

Almost surely, 2^6545867884 is an apocalyptic number.

It is an amenable number.

6545867884 is a deficient number, since it is larger than the sum of its proper divisors (5627062676).

6545867884 is a wasteful number, since it uses less digits than its factorization.

6545867884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347817 (or 347815 counting only the distinct ones).

The product of its digits is 51609600, while the sum is 61.

The square root of 6545867884 is about 80906.5379558414. The cubic root of 6545867884 is about 1870.6350978442.

The spelling of 6545867884 in words is "six billion, five hundred forty-five million, eight hundred sixty-seven thousand, eight hundred eighty-four".