5211872856 has 64 divisors (see below), whose sum is σ = 14626735200. Its totient is φ = 1719373824.

The previous prime is 5211872851. The next prime is 5211872929. The reversal of 5211872856 is 6582781125.

5211872856 is a `hidden beast` number, since 521 + 1 + 8 + 72 + 8 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211872851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103425 + ... + 145328.

Almost surely, 2^5211872856 is an apocalyptic number.

It is an amenable number.

5211872856 is an abundant number, since it is smaller than the sum of its proper divisors (9414862344).

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

5211872856 is a wasteful number, since it uses less digits than its factorization.

5211872856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248865 (or 248855 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 5211872856 is about 72193.3020161843. The cubic root of 5211872856 is about 1733.7957638310.

The spelling of 5211872856 in words is "five billion, two hundred eleven million, eight hundred seventy-two thousand, eight hundred fifty-six".