51059836212816 has 160 divisors (see below), whose sum is σ = 138391534374912. Its totient is φ = 16202622090240.

The previous prime is 51059836212797. The next prime is 51059836212871. The reversal of 51059836212816 is 61821263895015.

It is a congruent number.

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, 27889251 + ... + 29663613.

Almost surely, 2^{51059836212816} 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 51059836212816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69195767187456).

51059836212816 is an abundant number, since it is smaller than the sum of its proper divisors (87331698162096).

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

51059836212816 is a wasteful number, since it uses less digits than its factorization.

51059836212816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774721 (or 1774715 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 57.

The spelling of 51059836212816 in words is "fifty-one trillion, fifty-nine billion, eight hundred thirty-six million, two hundred twelve thousand, eight hundred sixteen".