51916429824 has 480 divisors, whose sum is σ = 167764012416. Its totient is φ = 14213283840.

The previous prime is 51916429813. The next prime is 51916429837. The reversal of 51916429824 is 42892461915.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 286831014 + ... + 286831194.

Almost surely, 2^51916429824 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 51916429824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83882006208).

51916429824 is an abundant number, since it is smaller than the sum of its proper divisors (115847582592).

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

51916429824 is a wasteful number, since it uses less digits than its factorization.

51916429824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 333 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The spelling of 51916429824 in words is "fifty-one billion, nine hundred sixteen million, four hundred twenty-nine thousand, eight hundred twenty-four".