51216726228096 has 256 divisors, whose sum is σ = 159840906624000. Its totient is φ = 14325237780480.

The previous prime is 51216726228089. The next prime is 51216726228121. The reversal of 51216726228096 is 69082262761215.

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, 909698955 + ... + 909755253.

It is an arithmetic number, because the mean of its divisors is an integer number (624378541500).

Almost surely, 2^{51216726228096} 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 51216726228096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79920453312000).

51216726228096 is an abundant number, since it is smaller than the sum of its proper divisors (108624180395904).

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

51216726228096 is a wasteful number, since it uses less digits than its factorization.

51216726228096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72907 (or 72895 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The spelling of 51216726228096 in words is "fifty-one trillion, two hundred sixteen billion, seven hundred twenty-six million, two hundred twenty-eight thousand, ninety-six".