5021866872 has 72 divisors (see below), whose sum is σ = 14949763920. Its totient is φ = 1521775200.

The previous prime is 5021866823. The next prime is 5021866873. The reversal of 5021866872 is 2786681205.

5021866872 is a `hidden beast` number, since 502 + 1 + 8 + 66 + 87 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5021866873) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 279504 + ... + 296927.

It is an arithmetic number, because the mean of its divisors is an integer number (207635610).

Almost surely, 2^5021866872 is an apocalyptic number.

It is an amenable number.

5021866872 is an abundant number, since it is smaller than the sum of its proper divisors (9927897048).

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

5021866872 is a wasteful number, since it uses less digits than its factorization.

5021866872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576465 (or 576447 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 5021866872 is about 70865.1315669420. The cubic root of 5021866872 is about 1712.4651098580.

The spelling of 5021866872 in words is "five billion, twenty-one million, eight hundred sixty-six thousand, eight hundred seventy-two".