47424824856 has 96 divisors (see below), whose sum is σ = 130338936000. Its totient is φ = 15575861952.

The previous prime is 47424824849. The next prime is 47424824921. The reversal of 47424824856 is 65842842474.

It is a happy number.

47424824856 is a `hidden beast` number, since 4 + 74 + 2 + 482 + 48 + 56 = 666.

It is a super-2 number, since 2×47424824856² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2254435 + ... + 2275373.

It is an arithmetic number, because the mean of its divisors is an integer number (1357697250).

Almost surely, 2^47424824856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47424824856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65169468000).

47424824856 is an abundant number, since it is smaller than the sum of its proper divisors (82914111144).

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

47424824856 is a wasteful number, since it uses less digits than its factorization.

47424824856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21413 (or 21406 counting only the distinct ones).

The product of its digits is 13762560, while the sum is 54.

The spelling of 47424824856 in words is "forty-seven billion, four hundred twenty-four million, eight hundred twenty-four thousand, eight hundred fifty-six".