51716496384 has 352 divisors, whose sum is σ = 177253824000. Its totient is φ = 14771662848.

The previous prime is 51716496379. The next prime is 51716496413. The reversal of 51716496384 is 48369461715.

51716496384 is a `hidden beast` number, since 5 + 1 + 71 + 6 + 496 + 3 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 51716496384.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 15674767 + ... + 15678065.

It is an arithmetic number, because the mean of its divisors is an integer number (503562000).

Almost surely, 2^51716496384 is an apocalyptic number.

51716496384 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 51716496384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88626912000).

51716496384 is an abundant number, since it is smaller than the sum of its proper divisors (125537327616).

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

51716496384 is an frugal number, since it uses more digits than its factorization.

51716496384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347 (or 3311 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 51716496384 in words is "fifty-one billion, seven hundred sixteen million, four hundred ninety-six thousand, three hundred eighty-four".