51324011340 has 192 divisors, whose sum is σ = 167917446144. Its totient is φ = 11470897152.

The previous prime is 51324011311. The next prime is 51324011351. The reversal of 51324011340 is 4311042315.

It is a happy number.

51324011340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51324011340.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3848524 + ... + 3861836.

It is an arithmetic number, because the mean of its divisors is an integer number (874570032).

Almost surely, 2^51324011340 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 51324011340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83958723072).

51324011340 is an abundant number, since it is smaller than the sum of its proper divisors (116593434804).

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

51324011340 is a wasteful number, since it uses less digits than its factorization.

51324011340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13536 (or 13534 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 51324011340 its reverse (4311042315), we get a palindrome (55635053655).

The spelling of 51324011340 in words is "fifty-one billion, three hundred twenty-four million, eleven thousand, three hundred forty".