51248424384 has 112 divisors (see below), whose sum is σ = 152214580000. Its totient is φ = 16906641408.

The previous prime is 51248424371. The next prime is 51248424397. The reversal of 51248424384 is 48342484215.

51248424384 is a `hidden beast` number, since 5 + 1 + 248 + 4 + 24 + 384 = 666.

It is an interprime number because it is at equal distance from previous prime (51248424371) and next prime (51248424397).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14742 + ... + 320490.

It is an arithmetic number, because the mean of its divisors is an integer number (1359058750).

Almost surely, 2^51248424384 is an apocalyptic number.

51248424384 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51248424384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76107290000).

51248424384 is an abundant number, since it is smaller than the sum of its proper divisors (100966155616).

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

51248424384 is a wasteful number, since it uses less digits than its factorization.

51248424384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305867 (or 305851 counting only the distinct ones).

The product of its digits is 983040, while the sum is 45.

The spelling of 51248424384 in words is "fifty-one billion, two hundred forty-eight million, four hundred twenty-four thousand, three hundred eighty-four".