5285661864 has 32 divisors (see below), whose sum is σ = 15101891520. Its totient is φ = 1510189056.

The previous prime is 5285661793. The next prime is 5285661869. The reversal of 5285661864 is 4681665825.

It is not an unprimeable number, because it can be changed into a prime (5285661869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15730969 + ... + 15731304.

It is an arithmetic number, because the mean of its divisors is an integer number (471934110).

Almost surely, 2^5285661864 is an apocalyptic number.

It is an amenable number.

5285661864 is an abundant number, since it is smaller than the sum of its proper divisors (9816229656).

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

5285661864 is a wasteful number, since it uses less digits than its factorization.

5285661864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31462289 (or 31462285 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 51.

The square root of 5285661864 is about 72702.5574790874. The cubic root of 5285661864 is about 1741.9397340133.

The spelling of 5285661864 in words is "five billion, two hundred eighty-five million, six hundred sixty-one thousand, eight hundred sixty-four".