51355321051776 has 256 divisors, whose sum is σ = 168540635136000. Its totient is φ = 13524993626112.

The previous prime is 51355321051753. The next prime is 51355321051817. The reversal of 51355321051776 is 67715012355315.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11698816 + ... + 15478143.

It is an arithmetic number, because the mean of its divisors is an integer number (658361856000).

Almost surely, 2^{51355321051776} is an apocalyptic number.

51355321051776 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51355321051776 is an abundant number, since it is smaller than the sum of its proper divisors (117185314084224).

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

51355321051776 is a wasteful number, since it uses less digits than its factorization.

51355321051776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27177039 (or 27177027 counting only the distinct ones).

The product of its (nonzero) digits is 3307500, while the sum is 51.

The spelling of 51355321051776 in words is "fifty-one trillion, three hundred fifty-five billion, three hundred twenty-one million, fifty-one thousand, seven hundred seventy-six".