51849502848 has 864 divisors, whose sum is σ = 185895440640. Its totient is φ = 13837824000.

The previous prime is 51849502843. The next prime is 51849502867. The reversal of 51849502848 is 84820594815.

51849502848 is a `hidden beast` number, since 5 + 18 + 49 + 502 + 84 + 8 = 666.

It is a super-2 number, since 2×51849502848² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51849502794 and 51849502803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51849502843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 730274653 + ... + 730274723.

It is an arithmetic number, because the mean of its divisors is an integer number (215156760).

Almost surely, 2^51849502848 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 51849502848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92947720320).

51849502848 is an abundant number, since it is smaller than the sum of its proper divisors (134045937792).

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

51849502848 is a wasteful number, since it uses less digits than its factorization.

51849502848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 54.

The spelling of 51849502848 in words is "fifty-one billion, eight hundred forty-nine million, five hundred two thousand, eight hundred forty-eight".